. ▁Liverpool ▁won ▁a ▁penalty ▁shoot - out ▁ 3 – 2 ▁after ▁extra - time ▁finished ▁ 2 – 2 . ▁He ▁book ed ▁three ▁players ▁during ▁the ▁game ▁and ▁was ▁rarely ▁required ▁to ▁interpret ▁any ▁content ious ▁moments . ▁ ▁He ▁offici ated ▁at ▁UEFA ▁Euro ▁ 2 0 1 2 ▁as ▁an ▁additional ▁assistant ▁ref eree ▁in ▁a ▁team ▁led ▁by ▁Howard ▁Web b . ▁Cl atten burg ▁was ▁also ▁selected ▁as ▁one ▁of ▁the ▁ref ere es ▁for ▁the ▁men ' s ▁football ▁tournament ▁of ▁the ▁ 2 0 1 2 ▁Olympic ▁Games . ▁He ▁offici ated ▁a ▁group ▁stage ▁match ▁between ▁Egypt ▁and ▁New ▁Zealand ▁at ▁Old ▁Tra ff ord , ▁a ▁quarter - final ▁between ▁Sen eg al ▁and ▁Mexico ▁and ▁the ▁gold ▁medal ▁match ▁between ▁Brazil ▁and ▁Mexico , ▁both ▁at ▁W emble y ▁Stadium . ▁ ▁Cl atten burg ▁ref ere ed ▁a ▁Champions ▁League ▁quarter - final ▁first ▁leg ▁on ▁ 2 ▁April ▁ 2 0 1 3 ▁between ▁Bayern ▁Mun ich ▁and ▁Ju vent us ▁after ▁which ▁former ▁Bayern ▁player ▁Paul ▁Bre it ner ▁pra ised ▁the ▁official ▁for ▁letting ▁the ▁game ▁flow . ▁Bayern ▁won ▁the ▁leg ▁ 2 – 0 . ▁ ▁Ch else a ▁compla int ▁about ▁in app ropri ate ▁language ▁On ▁ 2 8 ▁October ▁ 2 0 1 2 , ▁Ch else a ▁made ▁a ▁formal ▁compla int ▁to ▁the ▁Football ▁Association ▁against ▁Cl atten burg ▁about ▁his ▁alleg ed ▁use ▁of ▁" in app ropri ate