BLACKWOOD'S Bradley Dredge continued his remarkable career renaissance by stealing the thunder from compatriot Jamie Donaldson at the Czech Masters.

Dredge, 41, hasn't held a European Tour card since 2012 after loss of form, injury and illness saw his career nosedive.

The two-time European Tour winner has returned to action on a medical exemption and he took a giant stride towards retaining his card last week at the Made in Denmark event, finishing second.

All eyes at the Czech Masters are on Donaldson, who needs a good finish to secure his place on the European Ryder Cup team at Gleneagles, but it is Dredge who holds the advantage after a superb third round.

He shot a flawless 6-under 66 Saturday to take a two-stroke lead.

The former World Cup winner produced six birdies for an overall 12-under 204 at the Albatross Golf Resort near Prague and has only bogeyed one hole in 54.

His countryman and second-round leader Donaldson shot a 71 to sit tied for second with Soren Kjeldsen of Denmark (68), still on course to secure a spot on Europe's Ryder Cup team.

Donaldson opened with an eagle on the par-5 first hole, but had a double bogey on the eighth and three more bogeys in his worst round of the tournament. He needs a top-seven finish guarantee a spot in next month's match against the United States.

Stephen Gallacher, another Ryder Cup hopeful, also carded a 71 to sit four shots back.