Robert Lewandowski put Bayern ahead with a bullet header before Thomas Mueller doubled the visitors' lead to make it 2-0 just after the break at Signal Iduna Park.
UEFA announces nominees for the 2020-21 club competition awards, featuring Borussia Dortmund's Erling Haaland, Paris St Germain's Kylian Mbappe and Bayern Munich's Robert Lewandowski for the best men's forward category.
In a Twitter post, Robben said retirement is a difficult choice, and thanked everyone for their support.
After losing 1-0 to Bayern in last year's final, PSG now stands one step away from the second final of its 51-year history and remains on course to win it for the first time.
Laporta was last president at Barca between 2003 and 2010, which included overseeing the hugely successful appointment of Pep Guardiola as coach and the iconic treble-winning team of 2008/9.
Bayern Munich struggled in the match played under heavy snowfall and Bielefeld would have left the German football league's relegation zone with a win but had a fourth goal ruled out by a VAR decision.
Benjamin Pavard's close-range tap-in was enough to give European champions Bayern their sixth title within the last 12 months.
With majority of games being played without spectators since June, matchday revenue for top European clubs is likely to remain close to zero until the end of the 2020-21 season.
La Liga champions top the list among Europe's major leagues with $832 million (681.2 million euros), followed by Bayern Munich, Liverpool and Paris St Germain.
Coach Mauricio Pochettino was manager of Tottenham in the Premier League for five years and led the Spurs to the Champions League final in 2019.
Robert Lewandowski scored a dramatic injury-time winner, his second goal of the game, to earn Bayern Munich a 2-1 comeback victory against Bayer Leverkusen.
The Bayern Munich forward has been named The Best FIFA Men's Player 2020, beating off competition from last year's winner Lionel Messi and Cristiano Ronaldo.
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