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There might not be room for both Sigurdsson and Holtby at Spurs next season.
Cheating slightly with this entry, choosing between Lewis Holtby and Gylfi Sigurdsson as a player Tottenham should sell proved difficult.
Each have differences to Christian Eriksen, but their shared creative, forward-minded attributes and instincts make it more likely they will be competing with him for a role as an attacking midfielder than necessarily with others elsewhere (though both can also do a job in central midfield proper if given the chance, as well as out wide).
Given the Dane's edge in quality over Holtby and Sigurdsson, they are both looking at playing an understudy role to him unless fitted elsewhere.
Deciding between the two will come down to the new manager. That is not a decision to be envied.
Neither have made the kind of (essentially) immediate impact Eriksen has, but then again opportunities in their preferred central positions were limited. Both possess qualities Spurs will not really want to see being deployed elsewhere, either.
Sigurdsson's shooting ability really came to the fore last season. His seven goals joined Eriksen and Paulinho in compensating for issues up-front.
Holtby was a valuable go-to guy in cup games especially. His eye for a pass and movement off the ball providing a fluidity few of his midfield peers provided.
Back from his loan spell with Fulham, the cheerful and entertaining Holtby's running-battle with fellow German Steffen Freund was one of the big hits of Ledley King's testimonial last week (in which a current Spurs team took on the former captain's old boys XI). Characters do not necessarily win games, but they can aid team morale and establish an important relationship with supporters in the process, something which should not be overlooked when it comes to Hotlby.
Ideally Spurs would be able to keep both him and Sigurdsson around. But with competition for places in the club's midfield fierce, it is probable one of them will be among the first to depart this summer.