By Ollie Phillips The Investec Champions Cup Round of 16 takes place this weekend and the competition is so difficult to call. There are all-French ties, all-English ties and a number of multinational matches to get the taste buds salivating. I am backing three English Premiership, two United Rugby Championship and three French Top 14 teams to progress through to next weekend’s quarter-finals. But I don’t see any match decided by a cricket score, so here goes: Champions Cup FridayHarlequins vs GlasgowBoth Harlequins and Glasgow put 40 points on their respective opponents last weekend. Glasgow …