Henrikh Mkhitaryan could make his Arsenal debut off the bench as the Gunners face Swansea City in Premier League action on Tuesday.
The Armenia international completed his move from Manchester United last week, and has been named in Arsenal's matchday squad for the first time but doesn't start due to a lack of match fitness.
The 31-year-old is expected to complete his move to the Blues on Transfer Deadline Day in a move which will help facilitate Pierre-Emerick Aubameyang's long awaited move to Arsenal.
Jack Wilshere misses out with an illness after starting the last eight league matches for Arsenal.
Arsenal XI: Cech, Bellerin, Mustafi, Koscielny, Monreal, Elneny, Xhaka, Ramsey, Iwobi, Ozil, Lacazette
Subs: Ospina, Chambers, Kolasinac, Maitland-Niles, Mkhitaryan, Nketiah, Giroud