Sainz’s capture was a major coup ahead of last year, after he was left without a seat following Lewis Hamilton’s switch to Ferrari.
Clark called last year’s incident at Oakmont the “lowest point” of his career.
Gregor Townsend’s side have now won four of their six Tests this calendar year.
The 15-year-old India batter is already well on the way to superstardom.
Coronation Stakes winner does not have stablemate True Love to contend with.