Middlesbrough expect Luke Young to become their fourth summer signing today after the Charlton Athletic full-back completed a medical yesterday.

Young was in the crowd last night as Gareth Southgate's side beat Darlington and the right-back will officially become a Boro player today.

The 28-year-old saw two goals from Tom Craddock give Middlesbrough victory in a game which saw Stewart Downing and Julio Arca play for the first time this pre-season, but the match also saw Matthew Bates taken off after less than half an hour on his comeback from injury.

With Young, capped seven times by England, about to sign in a £2.5m deal, Southgate said: "We're pretty much there with Luke now.

"All we're waiting for pretty much is the paperwork from the Charlton end but I do not want to say too much until the deal is done.

"Until everything is signed and sealed with the Football Association I can't say much more, I don't want to tempt fate, but we're almost there with that one.

"I can't guarantee that there will be more signings this summer but we have signed four players so far which I'm more than happy with."

None of the other new additions - Tuncay Sanli, Jeremie Alidiere and Jonathan Woodgate, who was on loan from Real Madrid all last season - played last night as Boro recorded their first win in four pre-season games.

But the night was soured somewhat as Bates hobbled off after 25 minutes in his first game since suffering a cruciate ligament injury last November.

Bates was replaced by John Johnson after falling awkwardly and will undergo a scan this morning to determine the extent of the injury, but it is not a recurrence of his cruciate problem.

"It is a concern because the way he fell didn't look very good," said Southgate. "We'll scan it in the morning and fingers crossed it's not serious but I must say it didnt look good.

"It is not the same injury as before as it was the other leg. The pitch was slippy and it looked like he lost his footing."