Yorkshire skipper Darren Gough believes today's Friends Provident Trophy decider against Lancashire is too close to call.

A Tykes win will confirm them as north division winners, thus securing them a home tie when the quarter-final draw is made at Headingley tonight.

They will also qualify for the last eight with one point if today's final group game is ravaged by wet weather.

But should they lose to the Lightning, who beat the White Rose in a thrilling game at Old Trafford earlier in the competition, then they would have to get the calculators out.

Both sides have been hit by multiple injury worries, with Yorkshire missing Ajmal Shahzad, Rana Naved-ul-Hasan and Deon Kruis because of hamstring problems and Matthew Hoggard with a broken thumb.

Gough, Tim Bresnan, Rich Pyrah and Steven Patterson are Yorkshire's only fit seamers, while Lancashire are without Andrew Flintoff, Dominic Cork, Glen Chapple and Tom Smith.

Gough said: "Both sides have had an up and down start to the season. We are very, very similar.

"We showed against Scotland what we can do with the bat, and 90 per cent of the time we have bowled well in one-day cricket.

"We were a little bit off with the ball against Scotland, but you have got to give a little bit of leeway for the wind and the good pitch.

"It seems as though one very big team is going to go out today - either ourselves or Lancashire."

Both sides played out a thrilling game at Old Trafford early in May, with Lancashire chasing down a Duckworth Lewis adjusted target of 214 from 45 overs after they were reduced to 76-5.

Yorkshire successfully pursued their highest score of the competition, 245 from 50 overs, to beat the Saltires on Monday.

And the only time Lancashire have scored above 200 in the competition was their win over the Tykes.

Gough, the 37-year-old bowler, confirmed on Monday that he will be retiring from first-class cricket at the end of the season.

He said that "four-day cricket is getting harder and harder".

But he also revealed that leading Yorkshire out in a Lord's final is high on his to-do list before now and September.

"I would love to play in a Lord's final before I finish," he said. "That is one of the best occasions in county cricket."