Jose Mourinho won his eighth League title in 12 years in four different countries after Chelsea beat Crystal Palace 1-0 at an ecstatic Stamford Bridge.
Mourinho, trophy-laden career also includes domestic titles in Portugal, Italy and Spain.
This is the first since the Portuguese manager returned to the London club for a second spell in charge in 2013.
The win gave Mourinho his third title as Chelsea manager and the first of his second spell in charge. It is the club’s fifth top-flight title and comes five years after their last and 60 years since their first.
Eden Hazard’s goal on the stroke of halftime gave the Blues an unassailable 16-point lead at the top of the Premier League table.
Mourinho said the very strength of the Premier League, may work against Chelsea’s bid to add a second European Champions League crown to the one they won under Roberto di Matteo in 2012.
“The group starts with the League Cup and the Premier League but we know in future it’s very difficult and other teams will come even stronger,” Mourinho said.
“England’s not the best country to be a force and dominate football.”
Sunday’s win also set the seal on a difficult few days for Mourinho, who flew back to Portugal after Chelsea’s 3-1 win at Leicester on Wednesday because his 76-year-old father was seriously ill and had to undergo surgery to his head.
But Mourinho said his father, also called Jose and himself a former professional goalkeeper and manager, was making a good recovery following the operation.