By GERALD IMRAY
AP Sports Writer
DOHA, Qatar (AP) — Enner Valencia has scored Ecuador’s last six World Cup goals so there’s no understating how worried his country is after he was stretchered off in his last game. Ecuador hopes that the 33-year-old striker’s troublesome knees are OK for a decisive final group match against Senegal on Tuesday. Ecuador’s captain has three goals in two games in Qatar and is clearly key to its chances of reaching the knockout stage for only the second time. He scored three in three games in Ecuador’s last World Cup appearance in 2014 but that wasn’t enough to advance in Brazil.