By John Cross Cole Palmer has become Chelsea’s go-to man in a crisis. Yet again, Palmer delivered at Stamford Bridge with a goal and an assist which took his statistics to 19 goal involvements this season. Palmer, 21, nicknamed Cold Palmer for his ice cold mentality and trademark celebration of rubbing his arms to keep warm, did it all in front of England boss Gareth Southgate. The Chelsea forward has become Mauricio Pochettino’s most important player and an absolute must for England’s Euros squad this summer. It was a big result for Chelsea rounded off by a brilliant late clincher from Mykhai…