A repeat courtsider was arrested Friday at the US Open.
The man, a 33-year-old named Rainer Piirimets according to the New York Times, was among 20 courtsiders caught at the US Open in 2016.
Courtsiding is not illegal, per se, but it allows big betting operations to shave precious seconds on results because of the time delay on broadcasts.
Offenders were given 20-year “No Trespassing” notices, which Piirimets apparently ignored. Tournaments have files of photos and are always on the lookout. The Times said eight courtsiders had been caught this year.