Manchester United got Odion Ighalo on loan, West Ham spent big on Jarrod Bowen and Marko Pjaca left Juventus on deadline day.
West Ham left it late to complete one of the biggest deals of deadline day, signing Hull City's in-demand forward Jarrod Bowen.
Wayne Rooney's Derby County halted Stoke City's four-game unbeaten run in the Championship with another home win.
Antonee Robinson will not be joining Milan after the Rossoneri ran out of time for additional medical tests on Friday.
Leeds sit at the top of the table after a hectic night in the Championship, which saw Wayne Rooney score his first goal for Derby.
Jean-Kevin Augustin has joined Leeds United from RB Leipzig, initially on loan but with the option of a permanent move.
Stoke have a seven-point buffer over the bottom three after two second-half goals saw them past Swansea at the bet365 Stadium.
Ian Poveda, who made just one senior Manchester City appearance, has earned a four-and-a-half-year contract with Leeds United.
Lee Bowyer celebrated his new contract at Charlton Athletic by holding Fulham to a goalless draw, while Reading drew at Nottingham Forest.
Preston North End moved back into the top six in the Championship with a comfortable victory over relegation-threatened Barnsley.