PEBBLE BEACH, Calif. – Part of Ian Poulter’s message to the Great Britain and Ireland Walker Cup team on Wednesday night was this:

Capitalize on the waves of momentum.

The biggest wave came late Saturday morning on Cypress Point’s back nine as Tyler Weaver and Connor Graham, the visiting side’s most formidable pair, rattled off three straight birdies, starting at No. 13, to take control of their leadoff foursomes bout with world No. 1 Jackson Koivun and Tommy Morrison.

Weaver and Graham, whose average world amateur rank of 26 paled in comparison to the American duo’s 6.5, combined to tally nine birdies, including the clincher at the par-4 17th, to fuel what would be a 3-1 session win for GB&I captain Dean Robertson’s boys.

“We talked about it the other night with Luke’s dad, with Ian,

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