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Cut by Washington last year before landing in Oakland and thriving, cornerback David Amerson’s story became even more impressive when he signed a new five-year deal last week with the Raiders. As usual, the initial accounts of the numbers received by Amerson made the story seem a little better than it really is.

Described as a deal worth “as much as $38 million” with “nearly $18 million in guarantees,” here are the actual details, per a source with knowledge of the contract.

1. 2016 base salary of $1 million, fully guaranteed at signing.

2. $3 million roster bonus for 2016, fully guaranteed.

3. 2017 base salary of $6.5 million, guaranteed for injury at signing and the fully guaranteed on the third day of the 2017 league year.

4. $1.5 million roster bonus for 2017, fully guaranteed.

5. 2018 base salary of $5.5 million, guaranteed for injury at signing and the fully guaranteed on the third day of the 2018 league year.

6. 2019 base salary of $7 million, not guaranteed.

7. 2020 base salary of $7.38 million, not guaranteed.

8. $500,000 per year in workout bonuses, from 2017 through 2020. (Total available payout of $2 million.)

9. $500,000 per year in original-roster Pro Bowl escalators, 2017 through 2020. (Total available payout of $2 million.)

10. $500,000 per year in original-roster Pro Bowl incentives, 2016 through 2020. (Total available payout of $2.5 million.)

So here’s what it means. Amerson is guaranteed to receive $5.5 million at signing, with rolling injury-only guarantees of $12 million. That’s a total of $17.5 million in generally (not actually) guaranteed money at signing.

The deal itself has a maximum value of $38.38 million. But $4.5 million is tied directly to Amerson making it to the Pro Bowl on the original ballot in each of the next five years.