Costa played under Conte at Chelsea as they won the Premier League in the 2016/17 season, but had a falling out which prompted the former's return to Spain.

Chelsea travelled to face Barcelona in a round of 16 UEFA Champions League clash, after the first leg ended 1-1.

The Spanish International showed support for his former teammates on a post on his official Instagram story.

Costa posted a picture of his teammate’s lineup but covered the name of the Italian manager.

Costa and Conte spat

The duo had a spat in the summer of 2017 when the Italian manager informed Diego Costa via a text that his services will no longer be needed at Chelsea.

The 27-year-old moved back to but the striker is still not on good terms with his former manager.

Costa was replaced by Alvaro Morata who was recruited from Real Madrid, but could not save Chelsea as they were eventually dumped out by Barcelona.

Lionel Messi scored two and set up Ousmane Dembele as Barcelona emerged 3-0 winnersat the Camp Nou.

Former Chelsea player Frank Lampard argued in a post match punditry discussion that the London based side needed the services of the Spanish International against Barcelona.

Antonio Conte and his Chelsea team return to action when they travel to Leicester City in a FA Cup quarter final clash on Sunday, March 18