SWANSEA, WALES - SEPTEMBER 11: Chelsea player Diego Costa celebrates his first goal during the Premier League match between Swansea City and Chelsea at Liberty Stadium on September 11, 2016 in Swansea, Wales. (Photo by Stu Forster/Getty Images)
SWANSEA, WALES - SEPTEMBER 11: Chelsea player Diego Costa celebrates his first goal during the Premier League match between Swansea City and Chelsea at Liberty Stadium on September 11, 2016 in Swansea, Wales. (Photo by Stu Forster/Getty Images)