Joel Rosario will ride Gronkowski in the Travers Stakes and on Sunday he got to test-drive the Belmont Stakes runner-up, guiding him through a five-furlong drill in 1:01.32 over the Saratoga main track.
Gronkowski worked in company with the 3-year-old maiden Allured. Gronkowski, wearing blinkers and on the outside, went three furlongs in 36.99 seconds then got a last quarter in 24.33 and galloped out six furlongs in 1:13.79 and seven furlongs in 1:26.94.