Complex sentence: He was expected to lead the team again in the 2007 FIFA U- 20 World Cup held in Canada in July 2007 and was named in their squad, but an injury in training kept him from playing for three weeks, leading to his withdrawal from the squad.
Split into simpler sentences: He was expected to lead the team again in the 2007 FIFA U- 20 World Cup held in Canada in July 2007 and was named in their squad. However an injury in training kept him from playing for 3 weeks, leading to his withdrawal from the squad.