By Seth Everett

As the trade deadline approaches, every rumor involves the Phillies trading one or more prospects. Who is tradeable? Who is untouchable?

I thought it best to ask one of the premiere experts in Minor League Baseball, Jonathan Mayo of MLB.COM. He ranks prospects & breaks down farm systems, and in this exclusive audio clip, he gives his thoughts on who in the system is untouchable, and ranks the system vs. the other major league clubs.

Before we talk trades, listen to Jonathan, and hear what he has to say about Dom Brown, Vance Worley, Jarrod Cossart, & Jonathan Singleton.

Today I also spoke with Matt Leon on KYW Newsradio. Listen to that interview below.

I’m also the fill-in host for Rob Ellis from 7-10 pm tonight on 610 WIP, followed by “Extra Innings” on WPHT. Let’s just say, we are all over it.