Everton manager Roberto Martinez is bracing for a turbulent end to the transfer window as Manchester United consider a final bid for Leighton Baines and Marouane Fellaini. Not only was Martinez left to lament the penalty that should have been in Saturday's 0-0 draw at Cardiff City, but the Spaniard also faces the possibility of losing his two most influential players before the transfer window closes tonight. David Moyes, now in charge at Old Trafford, has infuriated Martinez with his public pursuit of England left-back Baines and Belgian midfielder Fellaini, but the Toffees have so far held firm despite United's bids. There is still a chance Moyes will return with one more offer and Martinez said he would have preferred the window to close before the start of the season. "As far as they [Fellaini and Baines] are concerned, they are both terrific professionals and a great example for football in general," Martinez said. "It's an unfair situation. Not just for us, for everyone up and down the country. There should be a transfer window, but once the competitive games start then it should stop because it is unfair for everyone. "They are top players as you have seen today and I want to keep my top players. But when you are in the transfer window you are not in control of what is going to happen." There was more angst for Martinez when referee Anthony Taylor waved away claims for a first-half spot-kick, when Cardiff midfielder Gary Medel brought down Baines with a reckless challenge in the box. Martinez, whose side failed to score for the second successive week, reckons Taylor's oversight was the most blatant error he has ever seen. "It's as clear a penalty you will ever see," said Martinez. "The last thing I would do is come out and just blame the referee for not getting the three points, but it was a key moment." Cardiff have kicked off their first season in the top flight for more than 50 years with four points from a possible nine. "I am very pleased," said Cardiff manager Malky Mackay. "We played a top team here. We showed huge concentration levels and I'm very pleased that we have got four points after three games."