As they went into Saturday, Lafeber (74) and Cejka (72) looked as if the were going to make this a two-man race but both struggled with over-par rounds, and as a result brought a large portion of the field back into the tournament.
Lafeber, who had a two-stroke lead after 36-holes, got into even more trouble than his co-leader. Back-to-back bogeys on the 11th and 12th were followed by a double bogey at the 14th and a bogey at the 15th.
Cejka produced no birdies on the back nine and instead posted three bogeys on the 12th, 14th and 15th.
A total of 31 players are now within five shots of the lead.
European stalwart Ian Woosnam produced a wonderful 6-under-par 65 that moved him up the leaderboard. He is now in a tie for third, just one off the lead.
The man from Wales started and finished his day in amazing fashion. Playing the back nine first, Woosie jarred his lob wedge for an eagle-2 and the par-4 10th. He then concluded his afternoon with a 60-foot bomb on the 9th.
It is obviously always nice to finish like that and the start I had was pretty spectacular too, he said. I hit a pretty good drive and left myself the perfect distance for my lob wedge. The ball landed about eight or nine yards from the pin and just rolled in ' nice to get a bit of luck for a change.
He is joined at 8-under through 54-holes with Simon Dyson (67), Greg Turner (67), Ian Garbutt (68) and Bradley Dredge (70).
Sitting only two off the pace is group of four players at 7-under and includes Swedens Robert Karllson and former NCAA All-American Paul Casey.
Casey, one of the rising stars on the European Tour, managed a 4-under 67 despite three consecutive bogeys on 13, 14 and 15. He quickly steadied the ship with an eagle at the 16th and a birdie at the par-3 18th. He also added another eagle on the 6th.
Karllson, who recently won the Omega European Masters and is currently 39 on the Order of Merit, had a 2-under 69.
Nick Faldo, who flirted with the lead on Thursday before throwing up a 74 on Friday, shot himself back into contention with a solid 3-under 68. Hes in a tie for 12th, only three back of the leaders.
Also with Faldo at 6-under is world No. 5 Sergio Garcia who had a wild day at the office. Two bogeys on the front side and a bogey and double on the back were mixed in with four birdies and an eagle for a 1-under-par 70.
Full-field scores from the Trophee Lancome