Ken Griffey Sr. says some of the novelty of playing on the same team with his son last season has worn off and it's time to focus more on baseball.

Griffey, 40, on Monday signed a one-year, $700,000 contract with the Seattle Mariners. The pact includes games-played incentives kicking in at 80 games and topping off at 130. If he plays in at least 130 games, Griffey could earn about $300,000 in bonuses.Griffey said he and his son will take a slightly different approach next season - that of being teammates instead of father-son.

"I think you'll find both of us being more businesslike, concentrating more on the game than the other things," the senior Griffey said after signing the contract.

Ken Griffey Jr., who started in center field for the American League in last summer's All-Star game, hit .300 in 155 games, leading the team in home runs and RBIs . Griffey Jr., 20, was named American League player of the month for April.

Griffey Sr. earned $510,000 last season, most of it paid by the Cincinnati Reds. He was signed by the Mariners as a free agent on Aug. 29 after being released by the Reds.

In 21 games with Seattle, Griffey Sr. hit .377 with three home runs and 18 RBIs. He was the Mariners' top offensive player for the final month and was named AL Player of the Week for the first time in his 18-year big league career.