Former City and Villa defender Richards told the Daily Mail of Grealish: “Personally, I’m delighted for him. He’s a lovely lad who you cannot help but like. I’m impressed, too, with the way...
The Blades finished ninth last season following promotion from the Championship.
The Gunners have turned to Dijon and Iceland stopper Runarsson to bolster their goalkeeping department after selling Emiliano Martinez to Aston Villa for £20m earlier in the week.
Last Sunday's defeat to Everton raised questions as to Spurs' reliance on Kane as the man to lead the line, as well as wider concerns about their inability to recruit well in the final third.
In the week Martinez completed his £20m move to Villa from Arsenal, he has been rewarded for his displays for Mikel Arteta's side with selection for Argentina's World Cup qualifiers.
Sportsmail will provide live updates from the Premier League and Europe throughout the day as clubs continue to wrap up signings during this summer transfer window.