Bresnan made his first one-day international appearance for two years against Scotland in Edinburgh on Monday, returning impressive figures of 2-34 from eight overs before rain washed out play at The Grange.

Yorkshire could be without the 23-year-old for the duration of the five-match NatWest one-day international series against South Africa, which starts at Headingley Carnegie tomorrow and concludes at Cardiff on September 3.

Bresnan could miss up to two County Championship and three NatWest Pro40 fixtures, the first of which is today's day/night game away to Derbyshire (4.10pm start).

Recalled to the England set-up following injuries to former Yorkshire pace bowler Ryan Sidebottom (hip) and Chris Tremlett (heel), Bresnan could potentially miss further county games should he force his way into England's Champions Trophy plans.

The Champions Trophy, which could be moved from Pakistan to Sri Lanka in the wake of widespread security concerns, is scheduled to start on September 12.

"Tim is staying with England for now, and how much we see of him will depend on whether he plays in the South Africa series and also on what happens with the Champions Trophy situation," said Moxon.

"We might not see too much of him for the rest of the summer, but I'm really happy for him on a personal level because he's bowled really well this year.

"He's got back into the England set-up on the back of someone else being injured, but he's deserved his recall anyway and I just hope he gets the chance to keep playing.

"If he does, there's no reason why he can't continue the good form he showed in the match the other day and the good form he's been showing for us throughout the whole summer."

Yorkshire are also without Gerard Brophy for today's match after the South African wicketkeeper aggravated a finger injury during last week's Championship Roses game; Simon Guy will take his place.

"Gerard has a sore finger and it's basically just wear and tear," added Moxon.

"There's no break, and it was just a situation he made worse at Old Trafford last week. It's settled down a bit since then, but it's still swollen.

"At this stage I don't know whether he will be fit for the Pro40 game at Scarborough on Monday."

Yorkshire travel to Derby with high hopes of gaining promotion after winning two of their opening three Pro40 fixtures.

Moxon said he was pleased with the team's progress in all one-day cricket this summer.

"I think we are steadily getting better at the one-day game," he said. "We've got a lot of young lads in the side and they are learning all the time.

"Someone like Andrew Gale, for example, has really impressed me with the way he's developed his game in one-day cricket.

"He's got much more of a game-plan now and has more of an idea where he's going to score his runs, how he's going to make best use of the power-plays, and so on.

"From a bowling point of view, I think the team are learning to think on their feet more and adapting better to match situations.

"We've been very competitive in all forms of one-day cricket – we reached the semi-finals of the Friends Provident Trophy and then the quarter-finals of the Twenty20, and who knows where that would have taken us? Now we've got a chance of promotion in the Pro40."

Azeem Rafiq, the teenager at the centre of the furore surrounding Yorkshire's elimination from the Twenty20 Cup when the club failed to ensure he was properly registered, has been granted special dispensation by the England and Wales Cricket Board to play first team cricket for the rest of the season.

The governing body have given Rafiq the green light to play while his application for British citizenship remains in progress.

The off-spinner completed the final stage of this process this week after signing a statutory declaration form and passing an interview with the ECB.

However, Rafiq is not eligible to play representative cricket for England until the application has been sorted out. Yorkshire hope everything will be resolved before the start of next summer.

Yorkshire squad versus Derbyshire (from): Gale, Rudolph, Rana Naved, McGrath, Lyth, Taylor, Rashid, Guy, Pyrah, Gough (captain), Kruis, Wainwright, Patterson.