A San Francisco 49ers cheerleader was spotted kneeling during the national anthem at Thursday's game against the Oakland Raiders.

The nationally televised game was held at Levi's Stadium in Santa Clara.

Former 49ers quarterback Colin Kaepernick began a wave of protests by National Football League players two seasons ago, kneeling during the anthem to protest police brutality and racial inequality.

The 49ers did not offer a comment but will be holding a press conference Friday afternoon.

The protests have grown into one of the most polarizing issues in sports, with President Donald Trump loudly urging the league to suspend or fire players who demonstrate during the anthem.

Kaepernick seems to have paid a heavy price for his protest, NBC Sports reported. He hasn't played in the league since 2016, and he reportedly has no prospects of joining a team anytime soon.

The Associated Press contributed to this report.