Last season Mauricio Pochettino fretted over Eric Dier's form. Then he discovered he had been approached by Manchester United.

And he was further incensed by Dier and Jose Mourinho chatting and laughing after a 1-0 defeat at Old Trafford.

Pochettino explains how he felt he refocused Dier on Tottenham...

I've told Eric he has what it takes to be the best English centre back but he has to be convinced of that himself. We've put the conditions in place for him to improve. But he broke into the national team thanks to his displays in the [midfield] holding role and ended up scoring a couple of big goals.

After we signed [Victor] Wanyama [in summer, 2016], Eric, who now sees himself as a midfielder, felt that we had treated him badly because Wanyama's arrival would halt his development. His performances have started to suffer this season. We've spoken a lot recently but I've felt he hasn't been telling me everything. Later on, I once again tried to understand why he couldn't shake off the shackles and I offered to help him with whatever it was.

Nothing. Then I found out that United have made an approach and the player is being destabilised. His people have been putting pressure on him, although United are not promising anything.