Costa could boost Jose
out for a big fee. Costa would be a much cheaper option as he only has one year left on his contract.
Spurs have concerns about his age and fitness, and he is coming off a disappointing season which saw him score just five goals.
But Costa would add aggression to a Spurs team Mourinho has often criticised for being too soft, and is open to a move.
Benfica have also inquired about the player’s availability but they are not the only other club in the running.
Tottenham have already signed midfielder Pierre-Emile Hojbjerg and goalkeeper
Joe Hart this window.
They are also poised to bring in full-back Matt Doherty from Wolves in a £15million deal, which should be announced in the next few days.
But they want to sign another centre-forward as they prepare to face the added workload of Europa League football.