I'm sure they'll be interested in anyone and everyone. Question is will they be ready to give out a three or two-year deal to anyone? He's only 30, and and one assumes they won't be bring back Robertson. I believe Kerkering will be back. If he's not, you can trade him for someone like Seranthony (who is not a FA, obviously). We'll have a better picture of their needs (and bullpen budget) once Alvarado's status is known.