Complex sentence: In 2007, Ponce lived one his best moments on Universidad de Chile, but however on 11 April 2007, he was injured during a training of the club, the player was nearly three months injured, however he fully recovered on September 2007.
Split into simpler sentences: In 2007, Ponce lived one his best moments on Universidad de Chile, but on 11 April 2007, he was injured during a training of the club. The player was nearly three months injured, however he fully recovered in September 2007.