CONCORD, Mass. (AP) _ From 1924 to 1927, Walter Hagen won the PGA Championship - the only man ever to win an event four years in a row on the pro golf tour.

Chi Chi Rodriguez seeks to become the second golfer to accomplish that feat this weekend when he bids for a fourth consecutive PGA Seniors Classic title at Nashawtuc Country Club.

''I feel very comfortable on this golf course and I always putt well here,'' said Rodriguez, he will lead a field of 72 players into the 54-hole, $300,000 tournament on Friday.

''I want to win every tournament, but the Digital tournament means a little more for me, especially this year,'' he said. ''It means a little more to my banker, too. Years ago he called me Chi Chi. Now he calls me Mister Rodriguez.''

The popular Puerto Rican set a Seniors tour record with his third consecutive victory at Nashawtuc last year. In the three championships, he was a combined 45 strokes under par for 162 holes.

Bothered by a pinched nerve in his neck, Rodriguez, the first player on the Seniors tour to earn more than $500,000, ranks 17th on the 1989 money list.

However, he reported his neck ''90 percent healed'' and he's ready to take on a field which includes eight of the top 10 money winners on the tour.

Orville Moody, Bob Charles, Bob Bies, Gary Player, Miller Barber, Bruce Crampton, Dale Douglass and Bobby Nichols are among the leading players returning.

Charles missed a 10-foot birdie putt on the 54th hole in finishing one stroke behind Rodriguez last year.

Moody, who won the U.S. Open 20 years ago, added the U.S. Senior Open championship to his laurels with a two-stroke victory over Frank Beard last Sunday. Moody's biggest victory in two decades was worth $80,000, vaulting him into the tour's money-winning lead with $318,923.