The torn labrum injury he incurred in 2004 required surgery and a year of physiotherapy.
During that time he read Michael Lewis's book Moneyball and got an internship position with STATS, Inc. of Chicago. "
I was one of their reporters, which meant that I looked at game video and plotted the 'TVL'–type, velocity, and location–of every pitch", Fuld said. "
They have this grid where you click on exactly where the ball crosses the plate.
Play the tape, pause, and repeat."
He also began seeking out stats that were not already kept. "
There's so many statistics out there that I thought 'There's no stats on foul balls,' so I picked a few players and started tracking them, thinking I'd find something", Fuld said.
But his bag that contained the notebook with all his stats was stolen.

Fuld's minor league career began in 2005, when he hit .300 with a .377 OBP and 18 stolen bases in 443 at-bats for the Single-A Peoria Chiefs of the Midwest League.
He also had a 17-game hit streak, and turned in 7 outfield assists from center field.

Fuld batted .300 with a .378 OBP and 22 steals in 353 at-bats for the High-A Daytona Cubs of the Florida State League in 2006, but he missed part of the season with a hip injury.
He had surgery for a sports hernia in the off-season.
He was named to the league All-Star team.

In 2007, Fuld batted .291 with a .371 on-base percentage, in 282 at-bats, as he began the season with the Tennessee Smokies in the Double-A Southern League. "
He knows how to play the game, when to take a pitch, when to work the count, and when to go ahead and swing away and juice the ball", said his Tennessee manager, Listach. "
He's strong enough that he can hit the ball out of the yard occasionally.
He's a gap, line drive type hitter."
He was an efficient leadoff batter for Tennessee, with more walks (41) than strikeouts (38).
He was touted by Baseball America as having the best strike zone judgment in the organization.
 "He's a very intelligent player", added Listach.
Fuld was also touted by Listach as having the best outfield skills on the team, as he led the Southern League with 13 assists from the outfield.
 In August, Fuld was promoted to the Iowa Cubs in the Triple-A Pacific Coast League.
 There, he batted .269, with a .397 on-base percentage.

Fuld played for the Mesa Solar Sox in the Arizona Fall League in the Fall of 2007.
On October 30, he was named AFL Player of the Week, after hitting .526.
In 29 games with the Solar Sox, Fuld led the league in batting average (.402), hits (43), doubles (11), extra-base hits (16), total bases (67), obp (.492), slugging percentage (.626), and OPS (1.118), and was 3rd in the league in runs (20) and walks (17), 4th in stolen bases (10), and 5th in triples (2).
He batted .462 with runners in scoring position, and .500 against lefties.
 Fuld was named the 2007 Most Valuable Player of the Arizona Fall League, after being the season's dominant player.
He also was named to the AFL Top Prospects Team.

Fuld also won the Dernell Stenson Award for Leadership, becoming the first player to win both awards.
 He donated the money he raised in an auction to the Juvenile Diabetes Research Foundation. "
This kid plays the game like it's supposed to be played", said Mesa Solar Sox manager Dave Clark.

In 2008, Fuld started the season with the Triple-A Iowa Cubs.
There, due to his style of defensive play, he was referred to as "a crash test dummy with a death wish", a "human wrecking ball act", a "wall magnet", and a "manager's dream and a trainer's worst nightmare."

Fuld began the 2008 season at Triple-A Iowa, but was demoted to the Double-A Tennessee Smokies in May after struggling at the plate due to a right thumb injury.
After hitting no higher than .245 in May, June, and July, he batted .345/.424/.445 in August.
Fuld averaged only 1 strikeout per 9.9 at-bats, good for fifth-best in the Southern League.

Fuld had a "big winter" playing winter ball in Venezuela on the Tigres de Aragua, who he helped lead to a championship.
He hit leadoff for Aragua, while batting .322 with 5 triples (leading the league), 36 walks
The torn labrum injury he incurred in 2004 required surgery and a year of physiotherapy. During that time he read Michael Lewis's book Moneyball and got an internship position with STATS, Inc. of Chicago. "I was one of their reporters, which meant that I looked at game video and plotted the 'TVL'–type, velocity, and location–of every pitch", Fuld said. "They have this grid where you click on exactly where the ball crosses the plate. Play the tape, pause, and repeat." He also began seeking out stats that were not already kept. "There's so many statistics out there that I thought 'There's no stats on foul balls,' so I picked a few players and started tracking them, thinking I'd find something", Fuld said. But his bag that contained the notebook with all his stats was stolen.
Fuld's minor league career began in 2005, when he hit .300 with a .377 OBP and 18 stolen bases in 443 at-bats for the Single-A Peoria Chiefs of the Midwest League. He also had a 17-game hit streak, and turned in 7 outfield assists from center field.
Fuld batted .300 with a .378 OBP and 22 steals in 353 at-bats for the High-A Daytona Cubs of the Florida State League in 2006, but he missed part of the season with a hip injury. He had surgery for a sports hernia in the off-season. He was named to the league All-Star team.
In 2007, Fuld batted .291 with a .371 on-base percentage, in 282 at-bats, as he began the season with the Tennessee Smokies in the Double-A Southern League. "He knows how to play the game, when to take a pitch, when to work the count, and when to go ahead and swing away and juice the ball", said his Tennessee manager, Listach. "He's strong enough that he can hit the ball out of the yard occasionally. He's a gap, line drive type hitter." He was an efficient leadoff batter for Tennessee, with more walks (41) than strikeouts (38). He was touted by Baseball America as having the best strike zone judgment in the organization.  "He's a very intelligent player", added Listach. Fuld was also touted by Listach as having the best outfield skills on the team, as he led the Southern League with 13 assists from the outfield.  In August, Fuld was promoted to the Iowa Cubs in the Triple-A Pacific Coast League.  There, he batted .269, with a .397 on-base percentage.
Fuld played for the Mesa Solar Sox in the Arizona Fall League in the Fall of 2007. On October 30, he was named AFL Player of the Week, after hitting .526. In 29 games with the Solar Sox, Fuld led the league in batting average (.402), hits (43), doubles (11), extra-base hits (16), total bases (67), obp (.492), slugging percentage (.626), and OPS (1.118), and was 3rd in the league in runs (20) and walks (17), 4th in stolen bases (10), and 5th in triples (2). He batted .462 with runners in scoring position, and .500 against lefties.  Fuld was named the 2007 Most Valuable Player of the Arizona Fall League, after being the season's dominant player. He also was named to the AFL Top Prospects Team.
Fuld also won the Dernell Stenson Award for Leadership, becoming the first player to win both awards.  He donated the money he raised in an auction to the Juvenile Diabetes Research Foundation. "This kid plays the game like it's supposed to be played", said Mesa Solar Sox manager Dave Clark.
In 2008, Fuld started the season with the Triple-A Iowa Cubs. There, due to his style of defensive play, he was referred to as "a crash test dummy with a death wish", a "human wrecking ball act", a "wall magnet", and a "manager's dream and a trainer's worst nightmare."
Fuld began the 2008 season at Triple-A Iowa, but was demoted to the Double-A Tennessee Smokies in May after struggling at the plate due to a right thumb injury. After hitting no higher than .245 in May, June, and July, he batted .345/.424/.445 in August. Fuld averaged only 1 strikeout per 9.9 at-bats, good for fifth-best in the Southern League.
Fuld had a "big winter" playing winter ball in Venezuela on the Tigres de Aragua, who he helped lead to a championship. He hit leadoff for Aragua, while batting .322 with 5 triples (leading the league), 36 walks
Sam Fuld