The Baltimore Orioles acquired aging outfielder Tim Raines from the Montreal Expos on Wednesday, with the intent of playing him alongside his son, Tim Jr.

The Raineses, who met in a spring training game in March and a minor league game last month, should become just the second father and son to play in a major league game, joining the Ken Griffeys, who did it 10 years ago.

The elder Raines, 42, was acquired from the Expos for a player to be named, one day after his son collected his first major league hit and run in a 4-3 win over Toronto.

Tim Raines Sr., who suffers from lupus, is in his 22nd season and his second go round with the Montreal Expos. He is fifth on the all-time list with 808 steals and has a .295 average, 2,585 hits, 427 doubles, 113 triples, 168 home runs and 968 RBI in 2,400 games.

This season, the senior Raines batted .304 (24-for-78) with four RBI for the Expos.

The younger Raines, 22, had his contract purchased from Class AAA Rochester of the International League on Monday.

He faced his father Mar. 6, when the Orioles played the Expos in an exhibition game in West Palm Beach, Florida, and again on August 21, when Rochester visited Ottawa -- Montreal's Class AAA affiliate.

In 1990 and 1991, Ken Griffey Jr. and Sr. both played for the Seattle Mariners. The tandem now is with the Cincinnati Reds, with the son playing center field and the father serving as hitting coach.