Here's Monday's list of players that have been placed on revocable trade waivers…

Yovani Gallardo — Ken Rosenthal of FOX Sports (on Twitter) reports that Gallardo has been placed on waivers by the Brewers. The starter drew interest this summer as a player who could help not just for 2013, but beyond, as he is under contract for $11.25MM next season with a $13MM club option for 2015. Gallardo is having a down year, but he has had two strong starts against the Reds this month since coming off of the DL. For his career, Gallardo owns a 3.76 ERA with 8.9 K/9 and 3.5 BB/9.

— Ken Rosenthal of FOX Sports (on Twitter) reports that Gallardo has been placed on waivers by the Brewers. The starter drew interest this summer as a player who could help not just for 2013, but beyond, as he is under contract for $11.25MM next season with a $13MM club option for 2015. Gallardo is having a down year, but he has had two strong starts against the Reds this month since coming off of the DL. For his career, Gallardo owns a 3.76 ERA with 8.9 K/9 and 3.5 BB/9. Mike Morse — Rosenthal also reports that Morse was placed on waivers by the Mariners. Morse's teammate, Kendrys Morales , was claimed off of waivers earlier today, giving Seattle two bats to dangle to interested clubs. Will either player be moved? We can surmise that the M's held on to impending free agents like Morse, Morales, and Raul Ibanez with the idea of retaining them beyond this season. On the year, Morse owns a .227/.282/.414 slash line with 13 homers in 301 plate appearances – down from his career line of .285/.338/.480.

— Rosenthal also reports that Morse was placed on waivers by the Mariners. Morse's teammate, , was claimed off of waivers earlier today, giving Seattle two bats to dangle to interested clubs. Will either player be moved? We can surmise that the M's held on to impending free agents like Morse, Morales, and with the idea of retaining them beyond this season. On the year, Morse owns a .227/.282/.414 slash line with 13 homers in 301 plate appearances – down from his career line of .285/.338/.480. Heath Bell — Jon Heyman of CBS Sports tweets that Bell, 35, has been placed on waivers. He came to the Diamondbacks from the Marlins this offseason in a three-team trade that also included the A's. Bell has rebounded, to an extent, from a rough 2012 season that saw him post a 5.09 ERA in his only season with the Marlins. He's pitched to a 3.88 ERA with 10.0 K/9, 2.1 BB/9 and a 41.9 percent ground-ball rate. His HR/FB ratio is at a sky-high 17.2 percent, which has bloated his ERA. xFIP predicts that with a league-average HR/FB rate (roughly 11 percent), Bell would have an ERA of 3.05. His K/BB numbers and the fluky nature of high HR/FB rates suggest he's in for some improvement in the ERA department, but he's under contract for $9MM this season and again in 2014. The Marlins are picking up $8MM of that salary, but he'd be an expensive acquisition. I'd expect Bell to clear waivers.

— Jon Heyman of CBS Sports tweets that Bell, 35, has been placed on waivers. He came to the Diamondbacks from the Marlins this offseason in a three-team trade that also included the A's. Bell has rebounded, to an extent, from a rough 2012 season that saw him post a 5.09 ERA in his only season with the Marlins. He's pitched to a 3.88 ERA with 10.0 K/9, 2.1 BB/9 and a 41.9 percent ground-ball rate. His HR/FB ratio is at a sky-high 17.2 percent, which has bloated his ERA. xFIP predicts that with a league-average HR/FB rate (roughly 11 percent), Bell would have an ERA of 3.05. His K/BB numbers and the fluky nature of high HR/FB rates suggest he's in for some improvement in the ERA department, but he's under contract for $9MM this season and again in 2014. The Marlins are picking up $8MM of that salary, but he'd be an expensive acquisition. I'd expect Bell to clear waivers. Javier Lopez — Heyman also tweets that the 36-year-old Lopez has been placed on waivers by the Giants. Lopez has a masterful 1.99 ERA with 8.2 K/9, 3.1 BB/9 and a monstrous 64 percent ground-ball rate. He drew significant interest from multiple teams prior to the July 31 non-waiver trade deadline. San Francisco GM Brian Sabean reportedly had exorbitant asking price at the time, seeking top prospect Danny Salazar from the Indians in exchange for Lopez. A free agent at season's end, Lopez is owed roughly $813K over the remainder of the year and seems likely to be claimed.

For a reminder on how revocable trade waivers and August trades work, check out MLBTR's August trades primer. You can see who is available to be traded to any team by checking MLBTR's list of players who have cleared waivers. Zach Links contributed to this post.