Colts’ Anthony Richardson could miss 4-6 weeks with sprained AC joint: Source

The Indianapolis Colts are preparing to be without quarterback Anthony Richardson for four to six weeks, a team source said, after the rookie left Sunday’s win over the Tennessee Titans with a shoulder injury. Here’s what you need to know:

Richardson’s initial diagnosis is a Grade 3 AC joint sprain, a team source said. Richardson had an MRI on Sunday and Indianapolis is waiting for the results to confirm the early diagnosis.
Richardson injured his shoulder in the second quarter when he was tackled at the end of a 4-yard run.
Gardner Minshew, who completed 11 of 14 passes for…