The Sting score a pair late but lose 4-2 to the Erie Otters.
Erie scored twice in the first period and added two more in the second to open a convincing 4-0 lead through 40 minutes.
Alex DeBrincat scored his league leading 17th goal of the season in the Erie win.
The third period was by far Sarnia's best. Josh Jacobs picked up his first OHL goal and Brandon Lindberg scored with just seven seconds remaining to highlight a strong period for Sarnia.
Sarnia assistant coach Jeff Barratt.
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Despite the 4-2 loss Sarnia outshot Erie 13-5 in the third period and 32-22 overall.
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Rookie goaltender Aidan Hughes got the start in goal and made 18 saves on 22 shots in his second OHL game.
After losing both games this weekend Sarnia travels to Owen Sound on Wednesday, before hosting Flint on Friday and Saginaw on Sunday.