Celtic warmed up for the second leg of their Champions League qualifier against Dinamo Moscow in Russia on Wednesday in disappointing fashion as they slumped to a 2-1 friendly defeat against Sunderland.
Trailing 1-0 from Wednesday's first leg at Celtic Park, Hoops manager Tony Mowbray used this match to increase the fitness levels of his squad but he may have expected some more encouragement from the display.
Goals either side of the break from Kieran Richardson and Kenwyne Jones gave the visitors a well-deserved lead until Hoops midfielder Marc Crosas put a better spin on proceedings when he pulled a goal back.
Two minutes from the end substitute Scott McDonald missed a sitter when he somehow headed Georgios Samaras' cross past the post from point-blank range.
Before the kick-off there was a minute's applause as tribute to former England and Newcastle boss Sir Bobby Robson and former Motherwell player Paul McGrillen, who both died during the week.