Bryce Harper and Manny Machado are the marquee names on this year's free-agent market and both players could wind up signing record-breaking deals.

They're not the only ones about to cash in, and for every excellent under-the-radar bargain signing, there's a player who winds up being massively overpaid.

From unsustainable breakout performances to aging stars headed for a decline, free agency can be a minefield of financial pitfalls.

Ahead is a closer look at six prime candidates to be overpaid this winter.

SP Anibal Sanchez

2018 Standard: 24 GS, 7-6, 2.