Born in Japan · Nationality Japanese — Sport / tennis

Kei Nishikori

Documented profile covering 3 controversies, including “Disclosure of extramarital affair and public apology” and “Decision not to play first round of Davis Cup in Japan in 2017 to prioritise ATP season”.

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Profile No. 0329 · Updated on 12 October 2026

3Documented controversies

6Sources

0Formal charge · all time

0Conviction

§ Legal statuses reflect the documented sources as of the date shown; they replace neither court decisions nor the presumption of innocence. Counts are not a rating. Methodology

I. Documented controversies

2025-06

Disclosure of extramarital affair and public apology

No legal proceedings

Shukan Bunshun published information reporting a long-running extramarital relationship. Nishikori subsequently apologised to his wife, children, fans, sponsors and sporting organisations.

State of the evidence: Allegations
Legal status — source text: No legal proceedings
Attribution: Personally implicated

Sources · 2

[1]
Bunshun《2年半不倫》テニス錦織圭がモデル女性と…MediaMedium reliability
[2]
PeopleTennis Star Kei Nishikori Breaks Silence amid Allegations He Cheated on His WifeMediaMedium reliability

Last verified: 21 August 2026

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2021-05

Public doubts over safety of Tokyo Olympics during pandemic

No legal proceedings

Nishikori called for more discussion about whether the Tokyo Games should go ahead during the pandemic, raising the possibility of thousands of infections and questioning Japan's capacity to respond.

State of the evidence: Documented
Legal status — source text: No legal proceedings
Attribution: Personally implicated

Sources · 2

[1]
ESPN / APKei Nishikori expresses concerns over holding Tokyo Games amid pandemicMediaHigh reliability
[2]
ABC AustraliaNishikori, Osaka voice concern over Tokyo Olympics amid COVIDMediaHigh reliability

Last verified: 21 August 2026

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2017-02

Decision not to play first round of Davis Cup in Japan in 2017 to prioritise ATP season

No legal proceedings

Nishikori chose not to participate in the home tie against France to protect his schedule and then play the South American swing. The decision was fiercely debated, with Julien Benneteau describing it as scandalous.

State of the evidence: Documented
Legal status — source text: No legal proceedings
Attribution: Personally implicated

Sources · 2

[1]
Sportiva錦織圭がデビス杯を欠場する理由MediaMedium reliability
[2]
TennisActuBenneteau : 'Le choix de Nishikori, un scandale'MediaMedium reliability

Last verified: 21 August 2026

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II. Constellation of documented links

No documented link with another published profile for now.

Two profiles are linked when a documented controversy of one names the other. The link points to that controversy and its sources; it does not indicate a personal relationship.

III. Has something changed?

A new court decision, a missing source, a mistake? Tell us what should be updated: every request is read by the editorial team.