ROSS BARKLEY will remember it as VA-Bar. The Chelsea sub, brazenly snatching the ball off Willian five minutes from time, watched his penalty skim off the top of the woodwork. If you take the ball from a player with Willian’s experience, if you insist you will score, then you have to. Them’s the rules. Instead he lifted his looping effort on to the bar after a VAR check confirmed Fikayo Tomori’s header had hit the hand of Daniel Wass.Chelsea were a goal down, trying to claw their way back into this Group H opener after Rodrigo’s clever winner 74 minutes in. They played like newbies, novices on the biggest stage European football can offer. They looked like a Europa League team. One game in and already Lamps has it all to do to make it through to the last 16.Rodrigo’s 74th minute goal, cleverly steered beyond Kepa after losing Chelsea’s defence, has made sure of that. Ajax’s 3-0 victory over Lille, plus Valencia’s shock win here, has given them a problem they could do without. Beating the oppo at Stamford Bridge is the bread and butter for a Chelsea manager. Defeat at home to La Liga strugglers Valencia in their…