International Team captain Mike Weir has named Ernie Els, Trevor Immelman, Geoff Ogilvy and Camilo Villegas as his assistants for this year's Presidents Cup.
Collin Morikawa is part of a four-way tie for the lead at the halfway mark of the RBC Heritage, where European young gun Ludvig Aberg and Masters champion Scottie Scheffler are also in the mix.