Tony Gwynn undergoing surgery for tumor

SAN DIEGO -- Hall of Fame outfielder Tony Gwynn is undergoing surgery to remove a new cancerous tumor inside his right cheek.

Gwynn, now San Diego State's baseball coach, had previously had a malignant growth removed from the same spot in August 2010.

Gwynn's wife, Alicia, told ESPN that doctors do not believe the cancer has spread outside of Gwynn's salivary gland.

But she said she expected to know more after Tuesday's surgery at the Moores Cancer Center at the University of California San Diego.

Gwynn had blamed the original growth on his use of smokeless tobacco.