Muller was speaking about Chelsea and Lampard given the two sides are set to face off in the UEFA Champions League.
Bayern play the English side in midweek in the round of 16, with the Germans the favourites to go through.
When asked about Lampard as a player, Muller had this to say to The Athletic.
"Not from that game but he was a super player," Muller said about Lampard, referencing the time Chelsea defeated Bayern in the Champions League Final in Munich in 2012.
"He played practical football.
"Technically very good, super shooting technique, super with long balls — a midfielder who could work and be dangerous in front of goal at the same time.
"He simply knew: these are the things you need to do to win football matches.
"He was a player I can really relate to."