The most obvious overrated footballers play for Manchester United. The hype is always loudest around that club. Beckham is the prize exhibit. But they've had loads over the years. Roy Keane and Bryan Robson were overrated. So was Giggs. Then you get Manchester United footballers who were really ordinary but who still managed to accumulate England caps because of the hype - the two Nevilles, Cleverly, Butt, Wes Brown, Phil Jones, Kieran Richardson, Lingard, Lee Sharpe, Owen Hargreaves, Ashley Young, Smalling, Mike Duxbury, David Sadler. Bang average footballers, all.
I'd add Harry Maguire, but he's not overrated since nobody except Southgate and his mum rate him.