Marcos Maidana said he 'doesn't give a f**k about Mayweather' in the build up to their boxing showdown in Las Vegas on Saturday.
Hosts have two wickets left in hand and require 33 more runs to seal historic victory.
The Gunners were well below their best against Middlesbrough in North London.
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Mourinho was sacked by the Blues in December 2015, despite winning the Premier League that year.
Rooney last started in the Premier League during Manchester United's defeat to Watford.
The teenager is considered to be among the brightest prospects at United.
Arsenal's 6-game winning streak ended after the Gunners drew their game against Middlesbrough on 22 October.