Jose Mourinho and Diego Costa could be reunited in the Premier League this summer.
The Spain international striker scored 24 goals and laid on nine assists during his 57 matches under the Portuguese boss at Chelsea between 2014 and 2015, winning the league title together.
Costa, 31, has failed to find his best form since leaving Stamford Bridge to return to Atletico Madrid in 2017, scoring only 10 goals across three La Liga seasons.
With his contract due to expire next summer – Mourinho could bring the forward to Tottenham as he looks for a back-up to Harry Kane ahead of the 2020/21 season.
Jose Mourinho got the best out of Diego Costa during their time together at Chelsea
After leaving Manchester United and before taking up his current role, Mourinho took part in a word association game with LiveScore in which he was given the names of several of his former players.
The Champions League winning boss was asked to say the first word that came into his head when hearing the name in question, and with Costa he said: “Animal.”
Mourinho also descried John Terry as leader, Didier Drogba as a legend, Lionel Messi as magic and Michael Essien as son.
Spurs clinched a Europa League spot for next season with a sixth placed Premier League finish in 2019/20, during which Mourinho was open about his desire to sign players this summer.
Diego Costa has failed to impress since returning to Atletico Madrid from Chelsea
He said in July: “I think we’re going in the right direction. Very calm, organised, measured, thinking of everything.
“We know what we can do, which directions we can go in, which directions we cannot. We are very balanced, we’re together.
“No doubts about what we need, what it is possible for us to get.
“Step by step we’ll end with a better, more balance squad, keeping the great players we have is a very important…