Arne Engels will be one of the happiest people in Glasgow this weekend after fully introducing himself to the Celtic support against Hearts on Saturday. Following a record £11m move from Bundesliga outfit FC Augsburg, Engels followed up a substitute debut against Rangers with a spot in the starting eleven against the Jam Tarts this weekend. It was a solid outing for the midfielder that promises more. After missing a couple of chances in the first half, including a shot that rattled the post, he bravely stepped up to convert a penalty and send the Bhoys on the road to a 2-0 victory. There’s und…