Halftime changes help overturn the deficit
Stensness headed Viking ahead from a corner after 71 seconds. Christiansen extended the advantage before halftime following Erik Botheim's pass. Vincent Kompany responded by introducing Dayot Upamecano, Alphonso Davies and Ismael Saibari.
Kane converted a penalty awarded after a VAR intervention and then headed in Joshua Kimmich's cross to level. Luis Díaz completed a move involving Kane and Konrad Laimer to put Bayern 3-2 ahead. The visitors had changed the scoreline, but the final phase brought another reversal.
Olise's dismissal precedes Viking's equaliser
Olise was booked for a foul on Henrik Heggheim and received a second yellow after throwing the ball at Zlatko Tripic during the ensuing confrontation. Bayern were reduced to ten players. The reported incident does not establish an additional, specific long-term suspension.
Tripic later crossed for Haugen to head the equaliser. Collected accounts differ over the scorer's full name, so only the consistent surname is retained.
According to Dân Trí, Viking secured their first Champions League point, while Bayern reached four points from two matches. Any table positions reported at that stage were provisional, rather than final rankings or confirmation that either team had qualified for the next phase.