Antonio Conte was sent off as Chelsea claimed a fifth Premier League win in six games with a 1-0 defeat of Swansea.
Head coach Conte was dismissed from the touchline for the first time in his Chelsea career by referee Neil Swarbrick moments before half-time after furiously protesting the award of a Swansea goal kick.
Conte watched the second half from the dressing room as Antonio Rudiger's goal proved decisive as he nodded home from N'Golo Kante's cross in the 55th minute.
After coming off the substitutes' bench to net the equaliser at Anfield last weekend, Willian started for the first time since the October 14 loss at Crystal Palace as Conte rotated his options.
Cesar Azpilicueta did not start a Premier League game for the first time under Conte. A run of 74 league starts, since December 2015, ended as Eden Hazard also dropped to the bench for Chelsea. Swansea were unchanged.
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