On May 10, 1996 — The Red Sox edge the Blue Jays, 6 – 5, in 11 innings. John Valentin ties the score with a 2-out homer in the 9th and Troy O’Leary homers in the 11th to win it. Heathcliff Slocumb, Tom Gordon and Mike Stanton combine to strike out 17 Jays.
Source:
Baseball Reference May 10