Costa is uncertain to start their Premier League game against Stoke City as he tries to shake off the lingering effects of a hamstring injury.
Costa will miss the holders' Euro 2016 qualifier at home to Ukraine on Friday and a friendly away to Netherlands four days later due to a hamstring injury.
Chelsea midfielder Cesc Fabregas was also named in coach Vicente del Bosque's squad And could be deployed as a forward.
Costa has been recalled by Spain coach Vicente del Bosque for matches against Ukraine and the Netherlands this month.
After Diego Costa ended a seven-game goal drought for Chelsea, Southampton quickly leveled from the spot through Dusan Tadic in the 19th minute and seized the initiative.
Mourinho's outburst was perhaps a reaction to PSG coach Blanc's assertion at an earlier news conference that Chelsea striker Costa was a provocative player.
The Brazilian-born Spanish international was heavily criticised after incurring a suspension for stamping on Liverpool's Emre Can in a League Cup semi-final.
"I'm not saying I'm an angel. I'm no angel. You can see that. But every time I play I will play the same way because that's the way I am," said Costa.
Costa will miss Saturday's crucial English Premier League game against title rival Manchester City after being handed a three-match ban for stamping on an opponent's leg.
Chelsea have cancelled their pre-match news conference ahead of Saturday's top-of-the-table crunch game against City.
If Costa is found guilty he will miss Saturday's match against second-place Manchester City and subsequent games against Everton and Aston Villa.
Chelsea scored four goals in the opening 36 minutes in their 5-0 demolition of Swansea in the Premier League on Saturday.
A goal in each half from Oscar and Diego Costa handed Chelsea a 2-0 win over Newcastle, a result that moves Mourinho's side two points clear atop the Premier League.
Diving is once again a hot topic in the Premier League after three Chelsea players, Cesc Fabregas, Diego Costa and Willian, were all booked for simulation recently.
Terry scored for the second straight game and Costa grabbed his 13th goal of the season as Chelsea beat West Ham 2-0.
Hazard and Costa scored as Premier League leader Chelsea responded to their first loss of the season with a 2-0 victory over 10-man Hull.
Chelsea will look to stretch one of the longest unbeaten sequences in the top flight when the runaway leaders entertain arch-rivals Tottenham Hotspur.
Diego Costa will miss Chelsea's midweek derby clash with Tottenham Hotspur after picking up his fifth yellow card of the season on Saturday.
Gus Poyet's side came close to an upset but settled for a well-earned point against the unbeaten Blues.
Supreme Court Directs Approved Govt and Private Labs to Conduct Free of Cost COVID-19 Tests
With Deaths of Malayalis Living Abroad On Rise, Kerala to Open COVID-19 Helpdesks in 5 Countries
Behaviour or Biology? Coronavirus Kills Men Twice as Often as Women in New York
New Research Links Air Pollution to Higher Coronavirus Death Rates