On 16 September 2007 (at 17 years and 19 days), Bojan made his official debut for Barcelona against Osasuna, replacing Giovani dos Santos in the 78th minute and breaking Lionel Messi's record of the youngest Barcelona player to feature in a La Liga match.
Three days later, he made his UEFA Champions League debut against Lyon, coming on at the 88th minute for Messi.
He was, at the time, the youngest Barcelona player ever to feature in a Champions League game, at 17 years and 22 days.
He made his second Champions League appearance on 2 October, coming on at the 81st minute for Ronaldinho against VfB Stuttgart.
On 20 October 2007 (at 17 years and 53 days), Bojan made his first league start for Barcelona away to Villarreal and scored in the 25th minute.
It was his first goal for the club's first team and it made him the youngest ever goalscorer for Barcelona in a league match.

Bojan scored his first ever Champions League goal on 1 April 2008 (at 17 years and 217 days) against Schalke 04, netting the only goal in the first (away) leg of the quarter-finals, making him the first person born in the 1990s to score in the Champions League and the third youngest player ever, behind Ghanaian forward Peter Ofori-Quaye, then playing for Olympiacos, who scored at the age of 17 years and 195 days, and behind Ansu Fati, another Barcelona player who scored at the age of 17 and 40 days against Inter Milan.
Bojan finished the season with a record of ten goals, breaking Raúl's record of most goals scored in a debut season.
On 16 September 2007 (at 17 years and 19 days), Bojan made his official debut for Barcelona against Osasuna, replacing Giovani dos Santos in the 78th minute and breaking Lionel Messi's record of the youngest Barcelona player to feature in a La Liga match. Three days later, he made his UEFA Champions League debut against Lyon, coming on at the 88th minute for Messi. He was, at the time, the youngest Barcelona player ever to feature in a Champions League game, at 17 years and 22 days. He made his second Champions League appearance on 2 October, coming on at the 81st minute for Ronaldinho against VfB Stuttgart. On 20 October 2007 (at 17 years and 53 days), Bojan made his first league start for Barcelona away to Villarreal and scored in the 25th minute. It was his first goal for the club's first team and it made him the youngest ever goalscorer for Barcelona in a league match.
Bojan scored his first ever Champions League goal on 1 April 2008 (at 17 years and 217 days) against Schalke 04, netting the only goal in the first (away) leg of the quarter-finals, making him the first person born in the 1990s to score in the Champions League and the third youngest player ever, behind Ghanaian forward Peter Ofori-Quaye, then playing for Olympiacos, who scored at the age of 17 years and 195 days, and behind Ansu Fati, another Barcelona player who scored at the age of 17 and 40 days against Inter Milan. Bojan finished the season with a record of ten goals, breaking Raúl's record of most goals scored in a debut season.
Bojan Krkić