By Tom Gott Arsenal, Chelsea and Manchester United have all been given the chance to sign Newcastle United striker Callum Wilson for as little as £18m, according to a report. Newcastle are looking to raise funds before the end of the January transfer window and were in talks over selling right-back Kieran Trippier to Bayern Munich, only for negotiations to collapse when an agreement could not be found. Miguel Almiron is a candidate to leave for Saudi Arabia, but the Evening Standard state that Wilson is also seen as a “sellable asset” by those in charge at St James’ Park. Wilson, who will turn…