The Spain international converted the all-well-known winner as the Blues momentarily moved nine points clear at the top of the Premier League table.
Diego Costa scored the only goal of the game as Chelsea made it 11 straight Premier League wins in a row with a 1-0 victory over Crystal Palace, Goal.com reports.
The Spain international headed the Blues in front after 43 minutes but will miss their next game against Bournemouth after picking up his fifth booking of the season.
Marcos Alonso struck the woodwork late in the moment half as Chelsea pushed to double their lead.
But just the one goal was needed in the end to see off Palace as Antonio Conte's men momentarily moved nine points clear at the top of the table.
Source: tert.am