As Celtic prepare for a potential title-clinching fixture against Kilmarnock tonight, Alistair Johnston shared how he was feeling after John Lundstram’s tackle in the Glasgow Derby. The Celtic defender was subject to a horror tackle from the Rangers midfielder and eventually had to be taken off to get treatment as he struggled to carry on playing. And after a VAR review, match referee, Willie Collum overturned his initial yellow card to a red and ordered Lundstram to grab an early shower. The tackle was condemned by many and barring Kenny Miller and Graeme Souness, the universal opinion was th…