▁match ▁between ▁Lyon ▁and ▁Saint - Ét ienne ▁resulted ▁in ▁police ▁firing ▁te ar ▁gas ▁into ▁the ▁crowd , ▁and ▁Chap ron ▁ordered ▁the ▁players ▁to ▁retre at ▁to ▁the ▁changing ▁rooms ▁for ▁ 2 0 ▁minutes . ▁ ▁Prior ▁to ▁ 2 0 0 8 , ▁the ▁only ▁international ▁matches ▁he ▁had ▁ref ere ed ▁were ▁qual ifying ▁matches , ▁but ▁in ▁October ▁ 2 0 0 8 , ▁Chap ron ▁took ▁charge ▁of ▁the ▁UEFA ▁Cup ▁first ▁round ▁second ▁leg ▁between ▁A ston ▁Villa ▁and ▁L ite x ▁Love ch ; ▁he ▁showed ▁two ▁yellow ▁cards ▁– ▁both ▁to ▁L ite x ▁players ▁– ▁but ▁also ▁awarded ▁L ite x ▁a ▁penalty ▁kick . ▁He ▁ref ere ed ▁two ▁more ▁UEFA ▁Cup ▁matches ▁in ▁the ▁ 2 0 0 8 – 0 9 ▁season , ▁including ▁the ▁Round ▁of ▁ 3 2 ▁second ▁leg ▁between ▁Hamburg ▁and ▁N EC . ▁In ▁June ▁ 2 0 0 9 , ▁Chap ron ▁was ▁named ▁as ▁one ▁of ▁six ▁UEFA ▁ref ere es ▁to ▁take ▁charge ▁of ▁the ▁ 2 0 0 9 ▁UEFA ▁Under - 2 1 ▁Championship ▁in ▁Sweden . ▁ ▁On ▁ 2 ▁November ▁ 2 0 1 0 , ▁Chap ron ▁took ▁charge ▁of ▁his ▁first ▁UEFA ▁Champions ▁League ▁match ▁between ▁Rub in ▁Kaz an ▁and ▁Pan ath ina ik os ; ▁he ▁showed ▁three ▁yellow ▁cards ▁during ▁the ▁game , ▁all ▁to ▁Pan ath ina ik os ▁players . ▁ ▁Chap ron ▁offici ated ▁at ▁the ▁ 2 0