[1] He signed as a free agent with the San Francisco Giants and also played for the New York Yankees organization as a utility infielder.

[8] On June 6, 2021, Mendoza was ejected for the first time in his MLB career by second base umpire Bill Miller despite not saying a word.

The game also saw fellow Yankees coach Phil Nevin ejected by home plate umpire Gabe Morales in the previous inning.

[11] He was also ejected on September 27 in a game against the Milwaukee Brewers by umpire Ramon De Jesus for arguing a strike 3 call on Francisco Álvarez.

[14] On November 11, 2024, Mendoza was named a finalist for NL Manager of the Year for his successful turnaround of the Mets.