Motherwell boss Stuart Kettlewell doesn’t think Celtic are at their most vulnerable at the moment and is expecting the ‘absolute best version’ of the Hoops on Sunday. The manager will lead his team through the Scottish Premiership clash at Fir Park hoping to pile more misery on Celtic and seriously derail their title ambitions. Brendan Rodgers is failing to get the best out of his first-team squad and has oversaw a disappointing two draws in the last four league games. Performances are very much under-par too and that is in stark contrast to arch-rivals Rangers who have usurped Celtic at the t…