The US lead 10-6 with 12 points up for grabs on the final day of the 39th playing of the storied competition.
Poulter has been the star in Jose Maria Olazabal's ensemble this week, and the Spaniard praised him for his contribution in yesterday's fourballs match.
Poulter faces US Open champion Webb Simpson in the second of today's matches and has vowed to give his all.
"I will give it 100% today," said Poulter. "I can't give any more.
"The guys are pumped up, I know that from the team room last night. We've got Seve on the arm and we can't ask for more."
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