Britain's David Howell maintained his three-shot lead in the PGA Championship after Saturday's third round.
But the round of the day in more bad weather at Wentworth drew Spain's Miguel Angel Jimenez up to second place.
Howell shot a three-under-par 69 to move to 14-under-par 202, with Jimenez carding a flawless 65.
The Spaniard made light of heavy rain which caused much of the rest of the field problems.
Two more Britons, Paul Casey and Simon Khan, share third place, six strokes off the lead.
Victory in Europe's flagship event will consolidate Howell's place on top of Europe's order of merit.
The 30-year-old Englishman, injury-free after withdrawing from last week's Irish Open with back trouble, is expecting a shootout with Jimenez.
"Miguel obviously played fantastic today and this is far from over," Howell said.
"But if Miguel and I play well there's a fair chance it will be between the two of us because there's quite a gap before third place.
"My back is good now and I feel I could still go on and hit 30 or 40 more shots. It wasn't like that on Thursday."
Jimenez set up the chance of his 14th and most prestigious title with a chip reminiscent of his 1998 'European Tour Shot of the Year' to draw closer to Howell.
Eight years ago his shot at the last at St Nom la Breteche to win the Lancome Trophy earned him the accolade and his chip on Wentworth's 18th from soaking rough over a bunker to three inches produced his seventh birdie on a flawless card.
Overnight second-placed Nick Dougherty of Britain slipped down the leaderboard to fifth place, eight strokes off the pace, after hitting his ball unplayable on the 17th and returning a 74.
Holder Angel Cabrera of Argentina slid to 10 strokes off the lead after a round of 75 that included a penalty shot at the ninth when his ball moved as he made his shot.