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A horse injured after crossing the finish line of a race at Santa Anita was euthanized, making it the 15th fatality at the track since late December.

Strictly Biz, a 4-year-old colt, fractured his right knee while galloping past the finish of the sixth race Saturday. The attending veterinarian determined it was an unrecoverable injury.

Ridden by Jose Valdivia Jr., Strictly Biz finished sixth among eight horses in the $51,000 race on the turf.

Trained by Brian Koriner and owned by Jay Em Ess Stable, the colt had one win in four career starts and earnings of $29,000, according to Equibase.

The track’s spring-summer meet ends Sunday.