Interestingly, in their last 13 visits to teams who finished inside the top six last season, Arsenal have failed to pick up a victory with their last win coming against Manchester City in 2015.
The Chilean, who was on the verge of joining Manchester City on transfer deadline day, was the star of the Europa League game against Cologne and scored a superb victor.
Arsene Wenger has suffered a major blow in the lead up to today's game. They scored the first goal in them games.
Chelsea midfielder Danny Drinkwater is expected to be out until the October worldwide break.
Arsenal are likely to recall a host of first-team regulars for the short trip.
Premier League champions Chelsea welcome Arsenal to Stamford Bridge on Sunday afternoon with Arsene Wenger's men already suffering two defeats in their opening four league fixtures.
Alexis Sanchez will feature after playing the whole game on Thursday night, where Theo Walcott (calf) hobbled off. Francis Coquelin (hamstring) and Santi Cazorla (ankle) are definitely out. Since then, Arsenal have lost five straight Premier League matches at the Bridge, with an aggregate score of 15-2, including a 6-0 annihilation in 2014. Furthermore, the Gunners have not kept a clean sheet at Stamford Bridge in their last 12 visits.
Arsenal have lost their last five away Premier League games versus Chelsea, their joint-longest away losing run in the competition against a single opponent (also 5 in a row vs Man Utd between 2009-2013).
Chelsea have recovered after starting the new campaign with a shock home defeat to Burnley, wins over Tottenham, Everton and Leicester seeing them rise to third in the table.
The Chile global, who missed the start of the season through injury, made his mark on the Europa League on Thursday by scoring a stunning goal in the 3-1 defeat of Cologne.