Celtic's record transfer spend. Derby debut against Rangers. A winning start to life at Parkhead. It was quite the whirlwind weekend for new recruit Arne Engels after Brendan Rodgers splashed the cash to bring him to the Scottish champions from Bundesliga outfit Augsburg.
He was thrown straight into the mixer with a spot on the bench and was brought on for his first taste of football in Scotland as the Hoops battered Philippe Clement's men 3-0 to win the first meeting between the duo.
A full house of Celtic fans partied in Glasgow's east end at full-time as the tunes blasted around Parkhead with the players taking a lap of honour after goals from Daizen Maeda, Kyogo Furuhashi and Callum McGregor secured a comfortable victory.
It was a day of firsts for Engels as he got into the spirit after Celtic TV footage captured him dancing with Alistair Johnston as they took in the applause of the supporters and soaked up the noise and atmosphere.