Jameis Winston: Tampa Bay Buccaneers shut down injured quarterback for 'couple weeks'

The Tampa Bay Buccaneers are playing it safe by shutting down franchise quarterback Jameis Winston "for a couple weeks" to rest his injured throwing shoulder, coach Dirk Koetter said Monday.

Koetter made the announcement after doctors examined the results of an MRI on Winston's right shoulder.

Winston initially sustained an AC joint sprain in his right shoulder in a 38-33 loss at the Arizona Cardinals on Oct. 15. The top overall pick of the 2015 draft then aggravated the injury in Sunday's 30-10 loss to the New Orleans Saints.

Ryan Fitzpatrick, who replaced Winston on both occasions, will get the start for the Buccaneers (2-8) on Sunday against his former team -- the New York Jets (4-5).

The Buccaneers will activate Ryan Griffin from injured reserve to serve as Fitzpatrick's backup until Winston is ready to resume football activities.

Winston has thrown for 1,920 yards with 10 touchdowns and six interceptions in 10 games this season. The 23-year-old has passed for 10,052 yards with 60 TDs and 39 picks in 40 career contests.

Fitzpatrick, 34, completed 8 of 15 passes for 68 yards and a touchdown in relief of Winston on Sunday.

Griffin was signed by the Saints as an undrafted free agent in 2013 out of Tulane. The 27-year-old has yet to play in a regular-season game during his career.