Bears' Dalton focused on Rams defense, not Justin Fields

Chicago Bears quarterback Andy Dalton (14) looks to pass against the Miami Dolphins during the first half of an NFL preseason football game in Chicago, Saturday, Aug. 14, 2021. (AP Photo/David Banks)

Chicago Bears quarterback Justin Fields (1) passes as he is pressured by Tennessee Titans safety Amani Hooker (37) in the first half of a preseason NFL football game Saturday, Aug. 28, 2021, in Nashville, Tenn. (AP Photo/Wade Payne)

FILE - Chicago Bears quarterback Andy Dalton, left, looks to pass as quarterback Justin Fields watches as they warmup before an NFL preseason football game against the Miami Dolphins in Chicago, in this Saturday, Aug. 14, 2021, file photo. Justin Fields looked like he was ready to play during the preseason. But with veteran Andy Dalton penciled in as the No. 1 quarterback, it remains to be seen when the Chicago Bears' prized rookie will play again. Another question is how short a leash Dalton will be on with the former Ohio State star behind him. (AP Photo/Nam Y. Huh, File)

Chicago Bears quarterback Justin Fields (1) scrambles against the Tennessee Titans in the first half of a preseason NFL football game Saturday, Aug. 28, 2021, in Nashville, Tenn. (AP Photo/Wade Payne)

Chicago Bears quarterback Andy Dalton looks to pass during the first half of an NFL preseason football game against the Buffalo Bills Saturday, Aug. 21, 2021, in Chicago. (AP Photo/David Banks)