West Brom boss Tony Pulis is keeping his cards close to his chest in terms of his goalkeeper selection for Saturday 's FA Cup quarter-final at Aston Villa . The Barclays Premier League derby between the two clubs at Villa Park on Tuesday ended in a 2-1 victory for the hosts after a stoppage-time error from Ben Foster saw the Baggies and England shot-stopper give away a penalty that was converted by Christian Benteke . Pulis spoke up for Foster - who has kept six clean sheets in all competitions since the Welshman took over at Albion - after the game . Ben Foster is not guaranteed to keep his place against Aston Villa in the FA Cup quarter-finals . Foster brought down Matthew Lowton to concede a penalty against Villa in Premier League clash on Tuesday . Christian Benteke scored from the spot to give their midlands rivals a late victory at Villa Park . And while refusing to say outright whether or not the 31-year-old would keep his place at the weekend , the head coach once again had praise for Foster at his press conference on Thursday to preview the cup tie . Asked about his goalkeeper selection for Saturday 's game , Pulis said : ' I 'll be telling the goalkeepers first before I tell you ! 'Boaz Myhill has had an injury with a finger , which we have to take into account . 'With the number of clean sheets he has kept ( 12 overall this season ) , Ben has been absolutely fantastic . 'Everybody makes mistakes . Goalkeepers get highlighted , like referees , because it can cost you games . ' Baggies boss Tony Pulis has backed his No 1 without confirming Foster will keep his place on Saturday . Saido Berahino celebrates while being chased by his team-mates , after netting his 18th goal of the season . With regard to referees , another notable incident from the latter stages of Tuesday 's game saw Villa defender Alan Hutton make a nasty-looking challenge on West Brom striker Saido Berahino and the pair square up to each other before each being booked . It appeared Hutton was lucky not to have been sent off by referee Jonathan Moss . And while Pulis was keen on Thursday to avoid hitting out at the official for not doing so , he did once again express his desire for there to be a referral system for managers during games where they get 'two calls ' each , something he has spoken about in the past . ' I 've seen the challenge back , ' said Pulis . Alan Hutton appeared to raise his studs into Berahino 's leg during Aston Villa 's win over West Brom . Berahino goes down in pain on the touchline following Hutton 's nasty challenge on Tuesday . Hutton and Berahino squared up after the challenge ( left ) and were both booked by referee Jonathan Moss . ' I thought Jon managed the game pretty well , and there are enough people at the moment criticising referees and looking to blame them . 'Jon did n't cost us the game on Tuesday , we cost ourselves the game . 'People make good decisions and bad decisions and you have to accept it - but I 'm sure he 'll look back at it and maybe will analyse it differently to how he did on the night . ' He then added : ' I would have two calls during a game , where managers can call things back . 'You could put advertising on the big screens ( at the same time ) - the clubs could make some money from it . Pulis has labelled the alleged spitting incident involving Jonny Evans ( left ) and Papiss Cisse as 'disgusting ' 'And it gives a chance to the officials to get right decisions that could be big . They , FIFA and UEFA , have to accept that referees do make mistakes . ' Pulis also made his feelings clear about spitting following Wednesday night 's incident involving Manchester United defender Jonny Evans and Newcastle striker Papiss Cisse . 'It is disgusting and disgraceful , ' Pulis said . 'Spitting should never be anywhere near our game . It should be dealt with . ' Pulis , while mindful of his side 's ongoing league battle to avoid relegation , says he will try to put his 'strongest team ' out on Saturday . Stephane Sessegnon ( right ) will be given time to cope with 'personal problems ' before returning to the team . Forward Victor Anichebe ( groin ) remains unavailable , and winger Callum McManaman is a doubt due to a foot injury . Pulis has also said West Brom 'have to go careful ' with Stephane Sessegnon due to the forward 's 'personal problems ' - understood to be a family bereavement - and that there are a few 'knocks and niggles ' to deal with . Berahino and fellow frontman Brown Ideye have both been playing recently with pain-killing injections .
Ben Foster 's mistake led to 2-1 defeat by Aston Villa in Premier League . Tony Pulis has backed England keeper but would n't confirm if he will start FA Cup quarter-final clash against Villans on Saturday . Former Manchester United defender David Beckham says the club are not for sale and that they have no intention of selling their star players this summer.