WATKINS GLEN, N.Y. (AP) — Racing in the rain at the Sprint Cup level is on the horizon, and NASCAR brought its rain tires to Watkins Glen International just in case.

Teams have nine sets of tires for Sunday's Sprint Cup race, four for practice and qualifying and five for Sunday's race. It's up to each team to decide how many rain tires they want — it they want any. They're allowed to purchase as many as three sets.

Kyle Busch is one of a handful of Cup drivers with experience racing in the rain. He finished 10th in a Nationwide (now Xfinity) series race won by Carl Edwards at Circuit Gilles Villeneuve in 2009. The previous year at the track outside Montreal, Ron Fellows set a precedent by winning NASCAR's first major points race in the rain when he took the checkered flag in the second-tier series race.

"It rained, so we all came in and did the rain tire thing and then it stopped raining and it started to dry out," Busch said Friday. "We were so close to the end of the race that nobody really wanted to come in and waste the time to put dries back on, so we were sliding around and just absolutely blistered the rain tires — just killed them.

"It's really, really difficult to know when to come in and put the slicks on because there could be a path where it's dry. If you're running slicks and you hit those wet spots, it's not going to be good."

A forecast at midweek called for a 50 percent of showers for Sunday's Sprint Cup race, but Friday's update predicted sunny skies for the race.