Sergio Garcia restored his partnership with Luke Donald at Medinah as Europe lined up in foursomes on the second day of Ryder Cup practice.
Garcia and Donald have four wins from four games in foursomes play in previous matches and they seem almost certain to be paired together when play gets underway for real on Friday.
They played alongside Rory McIlroy and Graeme McDowell, another partnership that already looks cast in stone.
Lee Westwood, who played fourballs on Tuesday with Donald, played with Paul Lawrie in the same group as Francesco Molinari and Nicolas Colsaerts.
Ian Poulter and Justin Rose played together for the second day running and they went out with Peter Hanson and Martin Kaymer.
Before their round Garcia, who has won eight and halved one of his nine foursomes games, said of the format: "I think it's quite simple - I just had great partners. They just carried me home.
"I don't know. I've managed to gel nicely with the partners I've had - we've played well together, we've been comfortable together.
"There's no big secret about it. It's being able to play well at the right moments - foursomes is the toughest format we play, so being comfortable with who you're playing I think is key."