Coach Dave Whistle has brought in Cavallin as temporary coverand he will join Colin Ryder on the bench for the Continental Cup in just over a week's time at the Odyssey Arena.
But the Everton boss revived his interest in Arsenal's 2005 FA Cup winner with defensive cover looking thin at Goodison Park following Neill's surprise exit and Tony Hibbert facing at least a month out with a hernia injury.
"After a couple of days learning the ropes and staying out of trouble, I was offered the chance to cover one of the World Cup soccer games from Giants Stadium in East Rutherford, New Jersey, " Dinan recalls.