Mikel Arteta made just one change to the side that beat Chelsea on Boxing Day, as we continued to build momentum with a win at Brighton & Hove Albion.
Alex Lacazette dropped to the bench while captain Pierre-Emerick Aubameyang returned from injury to lead the line.
So why did Arteta make that decision?
"He had a sore back, so he couldn’t start the game, but he came on and won the game for us, which is massively important," our manager explained.
"We had the opportunity to refresh that and use him as well in other moments.