Koetter made the announcement after doctors examined the results of an MRI on Winston's right shoulder.
The Buccaneers will lose starting quarterback Jameis Winston for "several weeks", to recover from a shoulder injury according to a report from NFL Media's Ian Rapoport.
Fitzpatrick will make his first start of the season against the team he started 27 games for from 2015-17.More news: Person Who Deleted Trump's Twitter Account Said to Be Contractor
Winston sprained the AC joint in his right shoulder on last month against Arizona, and he landed hard on that shoulder when he was sacked in the final minute of yesterday's first half against New Orleans.
Defensive end William Gholston, meanwhile, suffered a neck injury in the third quarter and didn't return. Ryan Fitzpatrick, who took over for Winston in the second half of Sunday's loss, will start in his place beginning with Week 10 against the New York Jets.
Winston's production has also dropped as the injury lingered.More news: How captain Virat Kohli prepped for 29th happy birthday with brilliant fifty
"He's going to be out for the next couple of weeks", coach Dirk Koetter said Monday, when a MRI was performed on Winston, who's thrown for 1,920 yards, 10 touchdowns and six interceptions this season.
The Bucs are moving Ryan Griffin to the active roster as Fitzpatrick's backup.
On Sunday, Winston completed 7-of-13 for 63 yards with no touchdowns or no interceptions.More news: Arsenal's Santi Cazorla opens up about career-threatening injury
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