Defender Liam Davis has signed a one-year contract with Oxford United after impressing on trial.

He becomes boss Chris Wilder’s ninth summer capture.

The former Northampton Town player, 24, made his first appearance in United’s midweek win against Birmingham.

And he played at left back in their 1-0 victory over a young Everton side at the Kassam Stadium as United concluded their pre-season programme undefeated in their eight games.

It also meant their defence have kept a clean sheet in six of their pre-season outings.

A second-half goal from James Constable sealed victory for United in an entertaining game.

“Davis has had a good football upbringing at Coventry City,” said Wilder.

“He played in League Two for Northampton for two seasons.

“He is an attacking full back, but can play in a number of positions and he’s got good pace.”

Meanwhile, Wilder was delighted with his players’ attitude in the victory over Everton, who fielded a side of talented young professionals.

He said: “When you get to the last game of pre-season it can be flatter than the rest because players are thinking about the new season, but our players were fully committed.

“We have had a difficult week, playing against three top sides (Everton, MK Dons and Birmingham) that move the ball around really well and teams have had a lot of possession, perhaps a bit more than I would have liked.

“We have been under the cosh, but look at the quality of players we have been up against.

“To be nice and tight against these sides, you have got to be delighted.

“The players have worked hard in training and in matches and deserve a lot of credit.

“I don’t think anyone has given a below-par performance.”

Wilder praised the contribution of former Grays defender Ryan James, who was outstanding at the back alongside fellow new signing Michael Duberry.

“Ryan was great again. He’s showed he has got some good quality and has really come to the fore.

“He’s played against two lively boys and kept a clean sheet, so all credit to him.”

Wilder added that defender Harry Worley’s knee injury will be assessed next week to see if he will make the squad for the npower League Two opener away to Rotherham.