Arsenal boss Arsene Wenger was left satisfied with their 2-0 win over FA Cup opponents Hull City.

Per Mertesacker and Alexis Sanchez struck the goals for the hosts.

"We had a serious performance and we were in control," said Wenger, whose side lost 2-0 at Southampton on Thursday.

"Of course as long as we don't score the second goal, you never know, but it was a positive game and we created a lot of chances."

Chile forward Sanchez was again Arsenal's stand-out player, sweeping home a 16th goal of the season.

"He is lively and always dangerous," said Wenger of the £32million summer signing from Barcelona.

"Alexis has a change of direction, is incisive and penetrating, and has also a good fighting spirit.

"He has a good combination of what you want to see from top players - that means being ready for a fight and talent."

Wenger admitted he was "tempted" to rest Sanchez.

He added: "You look at the players who have that confidence and you are torn between when a player is that confident to keep him on playing or give him a rest.

"But when the players are confident it is important to keep them going, especially when they have that physical potential.

"Sanchez recovers very quickly and he doesn't look in our tests to have any fatigue problem."