Facing an inferior club on Saturday, Chelsea submitted a stinker as it fell 2-1 to Southampton.
The Blues entered the match at third in the EPL table, owning 55 points and trailing Manchester City by just four, while Southampton found itself way down at No. 15 with 31 points in the standings.
The first half saw a ton of action with Jay Rodriguez kicking the scoring off for Southampton in the 23rd minute, as BBC Sport reports.
John Terry would answer back roughly 10 minutes later, though, for Chelsea, as he connected on a header from inside the box to equalize the match.
Unfortunately for the Blues, the first-half scoring wasn't over, as Rickie Lambert found the back of the net from 25 yards out on a free kick to put Southampton back up by a goal (via Premier League).
Following the first half of play, the Saints made a necessary change in goal following possible injury to starter Artur Boruc. B/R's Mike Miller speculates it had to be an injury for Southampton to make the switch.
The second half of play didn't see any scoring, as the Saints cruised to victory, 2-1.
With the loss and a Tottenham win, Chelsea drops to fourth place in the EPL table.
John Terry: B
While he did score the lone goal for the Blues, it's safe to say Terry and the attack weren't at their best today.
There was some confusion at times between Terry and Bertrand, and I thought there were times when Terry passed off instead of looking to attack himself.
Rickie Lambert: B+
Scoring the go-ahead goal that notched the victory over Chelsea, Rickie Lambert was solid against the Blues. As the leading scorer for the Saints, Lambert stepped in when his team needed it, depositing a beautiful free kick into the back of the net.
He created some decent opportunities for Southampton and was one of the best on the field on Saturday.
Frank Lampard: C-
As the leading scorer for Chelsea, Frank Lampard was nowhere to be found on Saturday.
Lampard struggled to make himself a part of the attack and looked off pace throughout the entire match.
Follow me on Twitter: Follow @Pete_Schauer