Bruce did not play in Seattle's 6-3 loss to the Los Angeles Angels on Saturday night.
"I have no news, honestly,'' Bruce said after the game. "I have nothing to speak on other than what's put out on the internet. Everyone probably knows that I'm available via trade. So that's still where we are, honestly. I wouldn't try to fleece you guys.''
He hit home run No. 300 on Friday night while playing first base in a 4-3 victory over the Angels.
"You know, a personal beer shower, that's probably my first one," Bruce said after Friday's game. "It's good. Cold -- it's very cold. If you had told me I was going to hit my 300th home run playing first base for the Seattle Mariners, I probably would have called you crazy."
An outfielder for much of his career, Bruce became the eighth active player with 300 home runs and 300 doubles (he's got 301), achieved in 1,557 games. That list includes Mariners teammate Edwin Encarnacion and the Angels' Albert Pujols.
Bruce, who joined the Mariners as part of a seven-player trade with the Mets in December, is under contract through the 2020 season, making $14 million both this season and next.
The Mariners, after getting off to a 13-2 start this season, have fallen to 25-36 and are fifth in the American League West standings. The Phillies, meanwhile, lead the National League East with a 33-25 mark.
According to ESPN Stats & Information, Bruce has a career .294 batting average at Philadelphia's Citizens Bank Park, which ranks only behind Houston's Minute Maid Park (.309) as his favorite place to hit.
The Associated Press contributed to this report.