Bahrudin Atajic failed to score with a late penalty as a second-string Celtic side suffered a 1-0 defeat by St Pauli in a friendly in Hamburg.
The midfielder was not the only player guilty of fluffing his lines - Amido Balde also spurned a decent chance, while there were opportunities too for Tony Watt.
Christopher Nothe put the German side ahead five minutes before the break when he beat Craig Gordon. The former Scotland No.1 shared goalkeeping duties with Lukasz Zaluska.
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Atajic was unable to follow suit after Paul McMullan won a penalty with three minutes left, although there was some friendly success among Scottish teams as Hamilton Academical came from behind to beat Shildon 3-1. Jason Scotland, Danny Redmond and Mickael Antoine-Curier scored for the Lanarkshire side.
Elsewhere in the north east of England, St Mirren defeated Blyth Spartans 4-2 following goals in injury time from Ross Caldwell and Mark Williams, while Ross County drew 1-1 against Nairn County.
Meanwhile, Henning Berg, the Legia Warsaw manager, has acknowledged that Celtic are a "step ahead" of his side, even though the Polish top flight is stronger than its Scottish equivalent.
The former Rangers defender will lead his side against Celtic in the first leg of their Champions League qualifier on Wednesday, with the second leg to take place at Murrayfield a week later. It is a tie which Berg is relishing but he accepts too that his players will need to punch above their weight to progress.
"The Polish league is slightly better than the Scottish league, but Celtic totally dominate in their country," he said. "They are a step ahead of us because they play regularly in Europe."
Celtic have also reiterated their demand to be paid a sizeable transfer fee as Birmingham City maintain their interest in Denny Johnstone.
The 19-year-old is out of contract at the Scottish champions and has been training in the west midlands. However, Celtic believe they are entitled to compensation as they offered the forward a new deal.