Newcastle host Liverpool on Monday night, a fixture framed by the striker who has dominated the summer transfer window

"If I'm a Newcastle player, I don't want Isak back," Rooney said on the BBC's Wayne Rooney Show. "I think if players leave football clubs - and that happens all the time - there's a way to go about it. "You can't go on strike, can't not turn up for training and train with your team-mates.