Tottenham Hotspur travel to Anfield this Sunday to take on Liverpool in potentially their hardest Premier League fixture of the season so far.
Spurs returned to winning ways in midweek by thumping Red Star Belgrade 5-0 in the Champions League.
But the north Londoners have stuttered in the league of late, drawing against Watford last weekend and losing 3-0 to Brighton before that.
This season, the position of right-back has been an issue for Spurs following the sale of Kieran Trippier, and Pochettino has some real thinking to do ahead of the weekend clash with Liverpool.
Against the Seagulls when Serge Aurier was suspended, the manager deployed Moussa Sissoko as a makeshift right-back, with Kyle-Walker Peters missing out entirely.
The Argentine could consider playing Eric Dier there against Liverpool, or bring Juan Foyth in for his first start of the season.
Whoever is selected, they’re in for a potentially long afternoon against the irrepressible Sadio Mane.
TBR’s view – Who should play?
One man who should not be in this equation is Aurier, whose rashness makes him a liability – and electric Mane could easily exploit that.
Sissoko did not cover himself in glory against Brighton, and perhaps the fixture is too big for youngster Walker-Peters, who hasn’t had the momentum of playing games of late.
Perhaps Pochettino will feel it’s between Dier and Foyth, in which case he should take a gamble on his compatriot.
Dier’s lack of mobility could be a bad idea against Mane, meaning Foyth could well be a risk worth taking.