It's time for Man United's undependable stars to show some backbone for Michael Carrick, writes CHRIS WHEELER - and why club chiefs will rue letting Casemiro go

By the time Sandro Tonali ’s cross reached Lisandro Martinez , he had his back to the ball. So distracted was the Manchester United defender in winning his wrestling match with Domnic Solanke that he had forgotten the most important thing of all. Having outmuscled the smaller Martinez, the Tottenham striker got enough on his header to send it creeping inside Senne Lammens’ left-hand post as Spurs snatched an injury-time equaliser at Old Trafford. It’s not like the Argentine hadn’t been warned either.