When it was initially reported that the Buffalo Bills had re-signed cornerback Leodis McKelvin, his new contract was reported as a four-year deal worth $20 million, with $7.5 million guaranteed. As it turns out, the deal is not quite that expensive.

According to figures obtained and published on Tuesday by The Buffalo News, McKelvin's four-year deal is worth $17 million. $4 million of that has already been paid in the form of a signing bonus, meaning that the remainder of his earning potential is $13 million through the 2016 season.

In terms of guarantees, McKelvin will pocket $7.5 million as originally reported. On top of the signing bonus, his $2 million base salary in 2013 is fully guaranteed, as is $1.5 million of his $2.1 million salary in 2014.

McKelvin will receive a $50,000 workout bonus in each year of the deal, and has a roster bonus due in every year but 2013, as well: he'll get $1 million in 2014, then $750,000 in each of the following two seasons. McKelvin's four base salaries over the next four years are $2 million, $2.1 million and $3.1 million in each of the last two seasons.