Tournament organizers set aside five extra spots to make sure they didn't go over the 156-man limit for the field at Royal St. George's next week. Now that there are only two exemptions remaining -- one each at the Scottish Open and John Deere Classic -- they have offered spots to five alternates.
The alternate list is determined by this week's world ranking.
Simpson is the highest-ranked player (No. 54) not already exempt. The other alternates behind him are Holmes, Vijay Singh, Marino and Yuta Ikeda of Japan. Singh's status is uncertain, as he withdrew from the AT&T National with a back injury despite being in contention.