Oxford boss Gary Waddock wants contract decisions from two of the club's stars before the end of this week.
Top scorer James Constable and the experienced Tom Newey were the only out-of-contract U's to be offered new deals last week and Waddock says he wants a verdict soon.
"Players will want to consider their options, which is fair enough," he told the Oxford Mail.
"But I also have to consider what I need to do here for this club.
"If you allow it to drag on through the summer it doesn't help anybody and I would like a quick answer.
"They either want to be a part of it, or they don't, but saying that I want both of the players here.
"In the current climate, the salaries they've been offered are good. It's up to the players whether they want to be a part of it.
"We've offered them contracts because we want them here, it's as simple as that."