A six-goal thriller unfolded in Bern with Atalanta going ahead after 10 minutes through striker Duvan Zapata. Siebatcheu ensured the scores were level at half-time, only for Jose Luis Palomino to restore the Serie A side's advantage.
Two goals inside four minutes looked to have turned the tie on its head as Vincent Sierro and Silvan Hefti sent the home crowd wild to edge Young Boys in front. However, Luis Muriel had the final say, with nine minutes remaining, with a goal that broke the Swiss team's hearts.
The outcome means United cannot be toppled from the group summit after our excellent 2-0 win at Villarreal.