Manchester United were poised to make a sensational deadline-day swoop for Radamel Falcao after agreeing a loan deal with Monaco for the Colombia striker.
Press Association Sport understands Falcao is set to undergo a medical with a view to becoming the latest high-profile summer signing at Old Trafford.
Falcao, who was heavily linked with Real Madrid last week, had apparently also been of interest to Arsenal and Manchester City.
With Falcao, 28, valued at around £55million, a move to City might have been complicated due to Financial Fair Play restrictions.
But it seems United, who were not thought to be in the market for another attacking player, have struck a deal of between £5million and £6million for a season-long loan.
In other business, United were also hoping to finalise a deal for the versatile Daley Blind from Ajax.
It emerged on Saturday that United had agreed a fee with the Dutch club and, with him having subsequently been pictured in Manchester, the transfer seemed likely to go through.
United have already spent £131.7million this summer on four players, including British record £59.7million signing Angel di Maria.
The activity means other players could be heading out.
Midfielder Shinji Kagawa rejoined former club Borussia Dortmund on a four-year deal on Sunday while Javier Hernandez, Danny Welbeck and Tom Cleverley have also been linked with moves. Hernandez has been pictured in Madrid over a proposed loan move to Real.
One of the clubs linked with Cleverley, Aston Villa, have allowed midfielder Karim El Ahmadi to rejoin his former club Feyenoord.
The Moroccan, who joined Villa for £2million from Feyenoord two years ago, has signed a three-year deal to return to De Kuip for an undisclosed fee.
"I've always said that I wanted to return to Feyenoord sometime," said El Ahmadi, who played for the club from 2008-12. "That time has come."
Chelsea midfielder Marco van Ginkel looks set to follow team-mate Fernando Torres to AC Milan on loan.
The Italian club have announced that the Dutchman has arrived in the city and is to undergo a medical.
No further details have been given but reports suggest the 21-year-old will move to the San Siro for the rest of the season.
Van Ginkel joined the Blues for £8million from Vitesse Arnhem a year ago but made just four appearances last season.
Torres last week joined the Rossoneri on a two-year loan.
Premier League newcomers Burnley also entered the market on deadline day by announcing the signing of Scotland winger George Boyd from Hull for an undisclosed fee.
The 28-year-old former Peterborough player, who was banned for three matches last year after being found guilty of spitting at Manchester City goalkeeper Joe Hart, has signed a three-year deal at Turf Moor.
Everton, who were also linked with a move for Cleverley, announced that defender Shane Duffy had joined Championship Blackburn on a three-year deal for an undisclosed fee.
The 22-year-old Irishman, who had life-saving surgery after a freak training accident while on international duty in 2010, made just 10 senior appearances for the Toffees.