Complex sentence: He would nearly miss the whole 2013-14 season after suffering an ACL injury on his left ankle during a preseason game, returning in May 2014 with a double-double (11 points and 10 rebounds in less than 20 minutes).
Split into simpler sentences: He would nearly miss the whole 2013-14 season, after suffering an ACL injury to his left ankle, during a preseason game. He returned in May 2014, with a double-double (11 points and 10 rebounds in less than 20 minutes).