Felix Peña (former pitcher)

I was at an Oakland game vs the angels maybe 3-5 years ago and I had a ball signed by Felix Peña and to be honest I didn’t really care about the angels much at that time so I had no idea who he was I only knew he was a pitcher. I just wanna know if anyone remembers him and if he was any good on the team. P.S. I would have shown the photo of the signed ball but I have no idea where it is currently.