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NAPA will sponsor Indy 500 winner Rossi through Detroit

  • Alexander Rossi is congratulated after winning the 100th running of the Indianapolis 500 auto race as he pulls into victory lane at Indianapolis Motor Speedway in Indianapolis, Sunday, May 29, 2016. (AP Photo/Darron Cummings)

    Alexander Rossi is congratulated after winning the 100th running of the Indianapolis 500 auto race as he pulls into victory lane at Indianapolis Motor Speedway in Indianapolis, Sunday, May 29, 2016. (AP Photo/Darron Cummings)  (The Associated Press)

  • FILE - In this Sunday, May 29, 2016, file photo, Alexander Rossi, left,  celebrates with car owner Michael Andretti after winning the 100th running of the Indianapolis 500 auto race at Indianapolis Motor Speedway in Indianapolis. Michael Andretti is the greatest driver to never win the Indianapolis 500. He has done it four times as a car owner, though, most recently on Sunday with Rossi. It can be a bitter pill to swallow to watch a rookie win a race your family has chased for over 40 years, but Andretti harbored no jealousy over Rossi's improbable victory.  (AP Photo/R Brent Smith)

    FILE - In this Sunday, May 29, 2016, file photo, Alexander Rossi, left, celebrates with car owner Michael Andretti after winning the 100th running of the Indianapolis 500 auto race at Indianapolis Motor Speedway in Indianapolis. Michael Andretti is the greatest driver to never win the Indianapolis 500. He has done it four times as a car owner, though, most recently on Sunday with Rossi. It can be a bitter pill to swallow to watch a rookie win a race your family has chased for over 40 years, but Andretti harbored no jealousy over Rossi's improbable victory. (AP Photo/R Brent Smith)  (The Associated Press)

NAPA Auto Parts announced Thursday it will sponsor Indianapolis 500 winner Alexander Rossi for two more races.

NAPA signed on with Andretti Autosport for the Indy 500 a little under two weeks before Rossi's surprising victory. The American became the first rookie to win the race since 2001.

He'll now have sponsorship from NAPA through the double-header on Detroit's Belle Isle this weekend.

Rossi's team was put together by Bryan Herta and merged with Andretti Autosport. Michael Andretti said he hoped to continue sponsorship conversations with NAPA beyond Detroit.