Big Unit could be big bargain - Randy Johnson

That's why Johnson is such an intriguing player to have on this market. Yes, he's 45 years old. Yes, he has pitched 4,039 innings. Those numbers say there's risk involved.

There are no sure things. But based on what he did last season — and based on what he has done for most of his career — he's worth the risk.

He still pitched 184 innings. He still had an ERA of 3.91. He still had 174 strikeouts and 18 quality starts.

If he can simply repeat those numbers, he'd be worth more than $8 million. He's not worth the $15 million he made last season. He knows this and offered to play for half that amount.