That's a good question. If it's me I roll with Ivory. He's the hot hand, and I don't know just how good Shetland Pony's hand is, which could affect his receptions/targets. That, plus he hasn't been taken off "Questionable" status as of yet. Honestly, if I were you I'd still go with Ivory this week, even if they list Sproles as playing between now and game time. Ivory runs with vicious anger - a good thing. He is on fire right now, and I'd stay with him.
All the best this week!
RB: Martin / Lynch / Lacy / Ridley / Wilson / Michael
WR: A Johnson / VJax / Gordon /Ja. Jones / Nicks / Douglas
PK: Bailey; DST: KC