US Ryder Cup player Griffin leads in California

Griffin was a captain's pick for the US Ryder Cup team

Procore Championship - round two leaderboard

-14 B Griffin (US); -11 R Henley (US), J Koivun (US); -9 L Griffin (US), JJ Spaun (US)

Selected others: -6 Scottie Scheffler (US); -5 C Young (US); -4 M Laird (Sco), C Morikawa (US); -2 H English (US), D Skinns (Eng), J Thomas (US); -1 S Burns (US), P Cantlay (US)

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American Ben Griffin warmed up for the Ryder Cup by moving into a three-shot lead at the end of the second round of the Procore Championship.

Griffin, who is part of a 12-strong United States team to play the Ryder Cup from 26-28 September in New York, shot a second round 66 in Napa, California.

The 29-year-old sank six birdies without dropping a shot as he moved to 14 under.

"I've been pretty focused on this golf tournament," said Griffin, who was a captain's pick by US Ryder Cup skipper Keegan Bradley and will be making his debut in the event.

"Without a doubt, off the golf course hanging out with the guys and stuff, there's been some Ryder Cup presence. But once I get on the first tee, I'm thinking I'm trying to play well here.

"This week I'm trying to literally do the same stuff I'm doing. I'm trying to stay confident, stay motivated and keep the pedal down."

Nine others from the US Ryder Cup team are also playing at this week's tournament, including world number one Scottie Scheffler, Russell Henley and JJ Spaun.

Henley is joint second with amateur Jackson Koivun on 11 under after a 68 and JJ Spaun is two shots further back after a similar second round score.

Scheffler also carded a 68 following a first round 70, which ended his run of 21 sub-70 scores, as he moved to six under par.

"I'm pulling for all the [Ryder Cup] guys to play well," Griffin told the PGA Tour website. "We want to build some momentum going into the Ryder Cup.

"I think the European guys are all trying to play really well [at the BMW PGA at Wentworth] and show us what they're capable of, and we're trying to show them what we're capable of.

"I want them all to play well, but I want to play a little bit better."