HOUSTON -

Phil Mickelson, ranked #9 in the World Rankings and #15 Keegan Bradley are the latest standout professional golfers to commit to the Shell Houston open.

The SHO has already received commitments from #1 Rory McIlroy, #5 Louis Oostheizen and #8 Lee Westwood.

Playes have until March 22 to commit to the SHO.