Welbeck continued to cause the Brentford defence all kinds of trouble in the opening 45 minutes and he doubled his tally with an easy finish in the 37th minute, after some great work from Alex Iwobi and Nacho Monreal.
Upon the resumption of the second-half, the hosts went a goal down as Alan Judge pulled one back for the Championship side in the 58th minute. "I would be happy with Danny Welbeck", Emery told SkySports.
The 27-year-old is in the final year of his contract with Arsenal - along with Aaron Ramsey - but Emery insists that he is fully focused on matters on the field rather than the contract negotiations of his players.
And following the 3-1 win, it prompted Arsenal fans to make a sly dig at Alexis Sanchez.
"I know they have past year of their contract with the team and they are working on speaking with the club, but for me, the focus is only on the performance in each match and every training".
"But the performance and the commitment is very high".
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Gareth Southgate will name his squad for the Nations League double-header against Croatia and Spain in the coming weeks, but Welbeck is keen to focus on his own game, rather than whether he has played enough to make the squad.
Despite his limited minutes, Welbeck has netted four goals from six appearances this season.
"We see the ability when he has got, and everyone has welcomed him and tried to give him advice and he has a lot of talent".
But it was Welbeck who took the initiative in the first-half.
"Obviously, Arsenal are a very good team full of quality players and they put out a strong team tonight".