Wigan manager Roberto Martinez expects Maynor Figueroa to be out for up to seven weeks with a knee injury. [LNB] The Honduran full-back suffered the setback at the weekend in the victory against Burnley at Turf Moor. [LNB] Martinez said: "Maynor has had a second scan and we now know he has a tear in the medial ligament in his left knee. It is not as bad as we feared at the beginning. He will be out for between six and seven weeks."[LNB] He added: "Maynor is a strong man and very fit. We will support him as much as we can. [LNB] "It is a big blow when any player is injured as we have a small squad and everyone has a massive role. But it is part of football and you have to cope." [LNB] Wigan could also be without Paul Scharner at Portsmouth on Saturday as he has a hamstring injury, while goalkeeper Chris Kirkland remains troubled by a dislocated finger. [LNB] Meanwhile, Martinez has phoned Sir Alex Ferguson to explain remarks attributed to him in a Spanish newspaper. [LNB] Martinez has also contacted Steve Bruce, Sam Allardyce and Rafael Benitez after they were all implicated in the article. [LNB] The Spaniard felt the need to clear the air after categorically denying he suggested the Football Association are afraid to punish Manchester United boss Ferguson. [LNB] Martinez said: "Those managers have probably been in this situation and know how things work. I have had a lot of support in that respect. To speak about other managers you need to win the league. But it is not in my nature to be outspoken."