Stephen Gallacher and Marc Warren have found out their groups for the World Golf Championships Cadilliac Matchplay event in San Francisco.
World number 42 Gallacher has been drawn in group 14 with Matt Kuchar, Hunter Mahan and Ben Martin.
World number 53 Warren is in group 12 with JB Holmes, Brooks Koepka and Russell Henley.
Gallacher begins on Wednesday against American Mahan, while Warren starts against Holmes, also from the USA.
Australia's Jason Day won the tournament in 2014.