Bayern Munich got their quest for an 11th consecutive Bundesliga title off to the best possible start, thrashing an overwhelmed Eintracht Frankfurt 6-1 away at Deutsche Bank Park on Friday.
The Senegalese was one of five different goal scorers for Munich, allaying fears Bayern may be toothless up front after the summer exit to Barcelona of Robert Lewandowski.
Joshua Kimmich, Benjamin Pavard, Jamal Musiala (two) and Serge Gnabry also got on the scoresheet for the Bavarians.
Kimmich opened the scoring in the fifth minute via a free kick, with his shot bouncing in off the post past a stunned Trapp, who may have had his vision obscured by dense fog caused by the pyrotechnics of his own home fans.
French defender Pavard scored just five minutes later, volleying in a loose ball across his body in a manner reminiscent of his goal of the tournament against Argentina in the 2018 World Cup.
Despite the opening onslaught, the next stages belonged to the home side, who had two clear cut chances to peg one back.
A header from Tuta hit the crossbar one minute after Pavard's goal, while in the 27th minute midfielder Jesper Lindstrom dribbled past several Munich defenders and had keeper Manuel Neuer beaten but sprayed his shot just wide of the left-hand post.
Munich won back the initiative immediately, with Mane heading in past Trapp to score Bayern's third and take the wind out of Frankfurt's sails.
Teenager Musiala continued his impressive pre-season form that saw him named man of the match in Bayern's 5-3 Super Cup win over Leipzig, tapping in a dribbled cross from Thomas Mueller from close range.
Fresh from signing a new deal that will see him stay in Munich until at least 2026, Gnabry tickled the ball under keeper Trapp in the 43rd minute to put Bayern 5-0 up at half-time.
Frankfurt coach Oliver Glasner made three changes at half-time, seeking to bring a bit of defensive stability to the Europa League champions' backline, as well as save some face ahead of their UEFA Super Cup clash with Real Madrid on Wednesday.
Frankfurt striker Randal Kolo Muani, one of those subbed on at half-time, managed to pull one back in the 64th minute, scoring on debut for the Eagles.
The France under-21 international slid the ball into an empty net after Neuer lost control, having travelled too far outside the Munich box.
Musiala scored his second in the 83rd minute, putting the ball under Trapp from close range after beating off several exhausted Frankfurt defenders.
At one point it appeared Bayern were on track to eclipse their own record for the best performance in an opening round clash, set in 2020 when they trounced Schalke 8-0 in a season where the Royal Blues were ultimately relegated.