Hearts ensured they will go into their penultimate match of the season with at least a one-point lead at the top of the Premiership after drawing with Motherwell in a pulsating match at a packed Fir Park. The visitors, chasing their first title since 1960, fell behind for the fifth game running when Stephen Kingsley bundled the ball into his own net, but they hit back through Lawrence Shankland just before the break. Hearts are four points clear of Celtic, who will have the chance to reduce the deficit to one point if they defeat Rangers on Sunday. Although visibly disappointed at full time not to eke out the victory, Derek McInnes’s team could yet seal the championship at home to Falkirk on Wednesday with a game to spare depending how Martin O’Neill’s side fare over their next two matches. The Edinburgh side will likely have to see out the remainder of their quest for glory without key duo Craig Halkett and Marc Leonard, who both went off with serious-looking injuries.…