Manchester United 's unique treble may be matched by Manchester City this weekend, but it's fair to say Erik ten Hag's focus will lie well away from what happens in Istanbul.
The Dutch boss is targeting a string of big name signing as he seeks to build on a promising season at Old Trafford, guiding the club to the League Cup and a third placed finish, securing a return to Champions League football. But he knows that if his side are to shine in Europe's top competition, let alone launch a bid for the Premier League title, reinforcements are needed.
Transfer speculation has so far been dominated by the pursuit of Harry Kane, with a new striker undoubtedly top of Ten Hag's wish list. But up front is not the only area where the Red Devils are seeking to strengthen.