The relatively unknown female comedy pairing "A Masso" and their
management firm released the apology on Tuesday after a skit referring
to the young tennis star made news.
The pair reportedly suggested Osaka needed "bleach," and said the
21-year-old former world number one was "too sunburned," during a live
performance on Sunday.
The duo - whose members call themselves "Kano" and "Murakami" -
issued an apology, saying that they had been "ignorant" and "hurtful."
"We apologise for our failure to supervise A Masso who made remarks
that entirely lacked consideration," their management firm Watanabe
Entertainment added in a statement.
Osaka is a household name in Japan, where her every move is followed
feverishly by local media, particularly when she is in the country of
her mother's birth.
She is the face of several leading Japanese brands, including the
carrier ANA, and "Naomi-chan" - as she is affectionately known - was
the main attraction at this month's Pan Pacific Open in Osaka, which she
But she has faced controversies over her dual heritage in a nation
that has been traditionally racially homogeneous, as well as scrutiny
for her imperfect Japanese speaking skills - though others insist it
adds to her charm.
In January, her sponsor Nissin Foods, known for its pot noodles, was
accused of "whitewashing" for an animated "anime" style advert that
depicted Osaka with pale skin.
Nissin Foods said Osaka had approved the advert but pulled it after a media firestorm.