Celtic play their final match in the USA on Saturday with a test against English Premier League side Chelsea. Brendan Rodgers’ side have been in fine form across the Atlantic. They easily dispatched DC United with a 4-0 scoreline before edging out Manchester City in a 4-3 thriller. While the focus of these matches is always on fitness and building towards games that matter, with the Scottish Premiership starting next weekend, it’s still been pleasing to see the team working hard and full of confidence. The Chelsea game, live on network TV in the USA, is another great chance for Celtic to impre…