Antonio Conte says defender Eric Dier can become "one of the best in the world" in his position as Tottenham prepare to host West Ham in the Carabao Cup quarter-finals on Wednesday.
Cristian Romero remains out with a hamstring injury while Ryan Sessegnon has a minor problem following Sunday's 2-2 draw with Liverpool.
Dier, 27, has impressed in the middle of a back three since Conte's arrival.
"That position is perfect for him," said the Italian.
"Eric Dier can become one of the best players in the world in that position. For sure he needs to work and continue to improve and understand the movement with the defensive line.