In losing 2-1 at home to Sunderland on Saturday, Chelsea manager Jose Mourinho saw his 77-game unbeaten streak in Premier League play at Stamford Bridge come to an end, per ESPN Stats & Info. Mourinho is now 61-1-16 in home league matches during his two stints at Chelsea.
Mourinho managed the Blues from 2004-2007, winning two Premier League titles and one FA Cup, and was seemingly on his way to a third league crown this season before Saturday's loss. Chelsea now sit two points behind Liverpool, having played one game more (Liverpool play at Norwich City on Sunday).
The loss on Saturday puts huge pressure on Chelsea to win out if they're to have any shot at capturing the Premier League title, with next weekend's fixture against Liverpool at Anfield arguably the most important match of the season.
Chelsea played with a bit of a second-string lineup on Saturday, with star midfielder Eden Hazard out due to a calf injury and regular goalkeeper Petr Cech rested ahead of Tuesday's Champions League semifinal match against Atletico Madrid.
On the other side, Sunderland continue their unlikely quest to avoid relegation, having now taken four points in four days after drawing 2-2 at Manchester City on Wednesday. While they are still last in the table at 29 points, Sunderland are only three points away from crawling out of the drop zone, with a home match against 18th-place Cardiff City next weekend.
Sunderland are only the third club to beat Mourinho at Stamford Bridge (116 games in all competitions) after Barcelona won there in 2006 and FC Basel did so this year; both of those losses came during Champions League play.