New Orleans Saints quarterback Jameis Winston will miss Sunday's game against the Minnesota Vikings in London due to back and ankle injuries.
The Saints downgraded Winston from doubtful to out on Saturday night, London time.
Veteran Andy Dalton will serve as the starting quarterback for the Saints (1-2).
Winston has been dealing with back issues since Week 1. The injuries to his ankle and foot became known during the week following the Saints' second game.
Winston didn't practice at all this week, so Saturday's announcement wasn't an unforeseen development.
Winston, 28, has passed for 858 yards, four touchdowns and five interceptions this season in his third campaign with the Saints.