Arsenal coach Arteta has said that Granit Xhaka will stay at the London club while United have new headaches with injuries to Paul Pogba and Scott McTominay.
News of all that's transpired on and off the football field
European heavyweights Barcelona, Bayern Munich, Juventus and Paris St Germain all maintained their leads and Benfica toppled Sporting Lisbon.
The Greek league leaders confirmed the move but did not give financial details. Local media said Toure would be paid around 2.5 million euros ($2.9 million) for one season.
Paulo Dybala came off the bench to give unbeaten Serie A leaders Juventus a 1-0 win away to a brave Bologna side who had the better of the match and hit the post in stoppage time on Sunday.
News of all that's transpired on and off the football field
Lionel Messi dragged Barcelona back from two goals down by scoring twice to snatch a 2-2 draw at home to Valencia in a thrilling encounter.
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field
Check out the top footballers of the weekend.
A summary of sports events and sports persons, who made news on Tuesday
Bayern Munich put upstarts RB Leipzig firmly in their place by sweeping to an emphatic 3-0 home win, with all the goals coming in the first half, in a disappointingly one-sided top-of-the-table Bundesliga clash on Wednesday.
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field
La Liga champions Real Madrid beat Getafe 3-1 on Saturday with a goal from Gareth Bale and two strikes from Cristiano Ronaldo to go 12 points behind leaders Barcelona and warm up for next week's Champions League game at Paris St Germain.
A summary of the results of the football matches played across Europe on Sunday
News of all that's transpired on and off the football field
Barcelona lost ground on La Liga leaders Real Madrid when their 11-match winning streak was snapped by Malaga, while Premier League pacesetters Chelsea dropped points at home to Burnley. Bayern Munich enjoyed a second-successive goalrush in the Bundesliga after routing Paderborn 6-0 while AS Roma lost ground to Serie A leaders Juventus after yet another draw. This and more from the happenings in the world of football over the weekend.