Leeds United made it two signings in one night when they completed a season-long loan deal for Giuseppe Bellusci.
The 24-year-old Italian centre-half was at Elland Road ahead of the Capital One Cup tie with Accrington and warmed up with his new team-mates before kick-off.
Bellusci, an Italian Under-21 international, arrives from Catania for whom he made over 100 senior appearances.
He is Leeds' ninth signing of the summer and his arrival - subject to international clearance - came after the Whites agreed a fee with Chesterfield for defender Liam Cooper after finally meeting the Sky Bet League One club's valuation.
Chesterfield had turned down two previous bids from Leeds for the former Hull centre-half, the second reported to be £475,000, which prompted the West Yorkshire club to declare the deal was off.
A brief statement on Chesterfield's official website said: "Chesterfield have agreed an undisclosed fee with Leeds United for central defender Liam Cooper.
"The player is currently discussing personal terms with the Championship club."
Cooper came through Hull's academy and signed a two-and-a-half-year contract with Chesterfield following an initial loan spell in January 2013.
The 22-year-old made 48 appearances for the Spireites last season as the Derbyshire club secured automatic promotion as League Two champions.
Press Association Sport also understands Leeds are close to adding Southampton striker Billy Sharp to their ranks.
The well-travelled 28-year-old, who lists Doncaster and Sheffield United amongst his former clubs, is out of favour on the south coast and it is understood an undisclosed fee has been agreed between the two.
Any deal is likely to be finalised over the coming days and would see Leeds add a new striker in the wake of Ross McCormack's transfer to Fulham.