By Simon Bird Michael Beale has vowed to battle on – and told moaning Sunderland fans that Tony Mowbray “isn’t coming back.” The former Rangers boss was left shell-shocked when home fans turned on him during Friday night’s defeat by Hull. They chanted: “You’re getting sacked in the morning…” just seven games into his reign, after Mowbray, now at Birmingham, was controversially sacked. Beale says he will get back onto the training pitch after losing four of his games in charge with two wins. Beale said: “It shows Tony Mowbray did a good job. He is not coming back and has lots of well-wishers a…