AILING: Mike Marshall of the Mets was released yesterday from a Cincinnati hospital that had tested him for an inflamed gastrointestinal tract.

He went on the disabled list for two weeks and headed to New York to rest. He is hitting .239 with six homers and 27 RBI.

He isn't happy about his playing time and has said he wants to be traded. When he started July 1 at first base, it was his first start since June 17, when he started in right field.

GONE: The Pirates gave up on Walt Terrell by assigning him to Class AAA Buffalo, a move that could result in his outright release. Terrell, whose 2-7, 5.88 record was the most glaring negative during the Pirates' first-half surge into the NL East lead, has until Tuesday to accept or decline the demotion. If he refuses to report -- as he indicated he will -- he would become a free agent in 10 days and the Pirates would be responsible for his three-year, $3.6 million guaranteed contract.

"We're disappointed, but we're prepared to eat the contract if we have to," General Manager Larry Doughty said. "What we're trying to do is put our best team on the field, and we're better now with Rick Reed in the starting rotation."

Terrell's earned run average was the highest of any NL starter and hitters were batting .295 against him. . . .

The Reds sent left-hander Tim Birtsas to Nashville. Coming up is left-hander Chris Hammond, 10-1 in Nashville with a 2.26 ERA and 106 strikeouts. He'll start tonight against the Expos. . . .

The Athletics placed third baseman Carney Lansford (.279) on the 15-day disabled list retroactive to July 12 with a sore right hamstring. The A's also designated pitcher Mike Norris for reassignment and moved catcher Terry Steinbach from the 15-day to the 21-day disabled list.

Outfielder Doug Jennings and infielder Lance Blankenship were recalled from Class AAA Tacoma to fill the two vacated roster spots.

Norris, 35, was 1-0 with a 3.00 ERA in 14 relief appearances. He was trying to come back after a six-year absence from the major leagues.