ATLANTA -- Falcons quarterback Chris Chandler, plagued by injuries throughout his career, was forced to leave Sunday's game against St. Louis because of a sprained left ankle.
Chandler was hurt on the next-to-last play of the first half after completing a 19-yard pass to Shawn Jefferson.
Offensive guard Kynan Forney was attempting to block Rams end Grant Wistrom, but knocked him into Chandler's right side. The quarterback's left leg twisted under his body as he went down.
Chandler was replaced by Michael Vick, the NFL's No. 1 draft pick this season. The Rams led 14-6 at halftime.
The 36-year-old Chandler has never made it through a complete season with the Falcons since joining the team in 1997.
Before Sunday, he sustained a concussion and rib injury this season, causing him to leave two games and miss another one entirely.