Concern at left-back, a potential upset and how to replace Defoe all feature in three things to monitor ahead of Sunderland's trip to Queens Park Rangers in tonight's EFL Cup tie.
Queens Park Rangers lost to Huddersfield Town in the Championship on Saturday afternoon.
Queens Park Rangers failed to win against Blackburn Rovers in the Championship on Saturday.
QPR have used the summer transfer window intelligently this season as they look to strengthen their squad in a bid to return to the Premier League.
The Guinean completed his move to Loftus Road on Tuesday.
The Guinean had been lined up as a target for Wolves.
The Belgian side want to keep the Guinean after his good start to the season.
The Guinea international has an array of skills.
Wolves have lost out on transfer targets to clubs including Queens Park Rangers.
The Molineux boss has admitted his side's interest in Idrissa Sylla.