Alexis had an active day with two goals and a missed penalty as Arsenal cruised past Hull City 4-1.
Arsenal will assess a number of players ahead of the trip to Hull after coming through a bruising and hard fought Champions League encounter in the Parc des Princes on Tuesday.
With Olivier Giroud still coming back from his summer exertions, it seems likely that Alexis Sanchez will line up as a central forward for the third week in a row at Watford.
Arsène Wenger has confirmed that Alexis Sanchez and Aaron Ramsey will be a part of Scandinavian touring squad this week following an extended summer break.
Alexis Sanchez wasn't on the field for penalties but he and his teammates won the Copa America for the second consecutive summer in penalties over Argentina.
Alexis Sanchez and Chile will try for their second Copa America title in two summers when they face Argentina on Sunday.
Alexis Sanchez provided a goal and scored two more as Chile beat Panama 4-2 to advance to the knockout stages of Copa America Centenario.
Amidst rumors of disagreements with Arsene Wenger come hints that Bayern Munich and Juventus are interested in buying Alexis Sanchez.
Alexis Sanchez scored twice in the first half as Arsenal cruised to an easy victory.
Arsenal have done it again, taking only one point away from match in which the club dominated in a 1-1 draw with Crystal Palace on Sunday.
Alexis Sanchez returned from the international break revitalized with a goal and an assist in Arsenal's 4-0 home victory over Watford on Saturday.
Alexis Sanchez assisted on Calum Chambers' opener and then scored the winner as Arsenal squeezed by Burnley 2-1 at the Emirates to move on to the 5th round of the FA Cup.
Arsene Wenger implied that Alexis Sanchez will be available for Chelsea on Sunday and it is likely that the Chilean will start.
Mesut Ozil will be ready for Sundays' derby against Chelsea at The Emirates. Meanwhile, the next two days will be decisive for Alexis Sanchez in terms of proving his fitness.