Leesaw has been included in the national team setup since a very young age and is a very versatile player, playing either on the wing or as striker.
Leesaw first came to the fore in the King's Cup in 2005 and has been a squad regular since, only being rested when called up to represent the nation in Olympic qualifying matches or in SEA Games.
He represented Thailand in the 1999 FIFA U-17 World Championship in New Zealand.
In the final of the 2005 SEA Games match against Vietnam, he scored a hat-trick, and helped Thailand claim the gold medal for the 7th consecutive time.

Teeratep has been called up to new coach Peter Reid's first squad selection, to play in the T&T Cup 2008 hosted by Vietnam.
Teeratep was a member of the victorious T&T Cup 2008 winning squad.

On 6 March 2014, he played for Thailand against Lebanon in the 2015 AFC Asian Cup qualification, and scored a goal.
Leesaw has been included in the national team setup since a very young age and is a very versatile player, playing either on the wing or as striker. Leesaw first came to the fore in the King's Cup in 2005 and has been a squad regular since, only being rested when called up to represent the nation in Olympic qualifying matches or in SEA Games. He represented Thailand in the 1999 FIFA U-17 World Championship in New Zealand. In the final of the 2005 SEA Games match against Vietnam, he scored a hat-trick, and helped Thailand claim the gold medal for the 7th consecutive time.
Teeratep has been called up to new coach Peter Reid's first squad selection, to play in the T&T Cup 2008 hosted by Vietnam. Teeratep was a member of the victorious T&T Cup 2008 winning squad.
On 6 March 2014, he played for Thailand against Lebanon in the 2015 AFC Asian Cup qualification, and scored a goal.
Teeratep Winothai