Nottingham Forest have been working under transfer restrictions all season.
Firmino has become Liverpool's top scorer in all competitions this season.
The former Spurs midfield insists Danny Rose deserves to be Roy Hodgson's number one at left-back ahead of competition including Kieran Gibbs.
Neil Lennon is tipped to be one of the favourites to take over from Ronny Deila at Celtic.
Ter Stegen has been linked with a move away from Barcelona, while De Gea's future has come under the spotlight once again.
Leeds United are currently 12 points adrift of the top six in the Championship table.
The Saints beat a host of clubs to sign the striker in January, according to reports.
Manchester United assistant Giggs is a big admirer of the Swansea and Wales defender
The Owls are currently sixth in the Championship with nine games to go.
Aitor Karanka will continue at Middlesbrough walking out in the build-up to Sunday's game at Charlton.