Goals from Rob Holding, Alex Oxlade-Chamberlain and Chuba Akpom had the Gunners in control, before their Mexican opponents pulled a goal back from the penalty spot with 17 minutes remaining.
Holding opened the scoring in the 34th minute at StubHub Center after Calum Chambers had created the opening for his central defensive partner - and it was 2 -0 five minutes into the second half courtesy of an impressive individual goal from Oxlade-Chamberlain
England Under-21 international Akpom, whose late goal gave Arsenal a 2-1 victory over the MLS All-Stars i n San Jose on Thursday, made it 3-0 six minutes later
Guadalajara pulled a goal back through Angel Zaldivar's penalty, awarded after Mathieu Debuchy had fouled Alex Zendejas
The Gunners start their Premier League campaign on August 14 at home to Liverpool
Source : PA