Former Sunderland defender Kevin Kilbane has big fears for his old club after defeat to Middlesbrough.
Kilbane wrote for BBC Sport: "I am surprised Sunderland manager David Moyes warned fans to expect a relegation battle after his side's defeat by Middlesbrough - but I can understand why.
"Like everyone else who watched that game, he could see the Black Cats are going to struggle massively with the squad they have got.
"I know all about Moyes' strengths in man-management, coaching and tactics from playing under him at Preston and Everton, but I also know the kind of players he needs to build a team that can do what he demands.
"At the moment, his squad looks a long way off that.
"What happens - or doesn't happen - to change that before the transfer window closes on 31 August holds the key to how Sunderland's season is going to turn out."