Rahm, 28, admits he has sought advice from record European Ryder Cup points scorer Garcia and the 'postman' himself Poulter in recent weeks.
Garcia even as recently as yesterday.
Rahm admits he has leant on his fellow Spaniard for some words of widsom in all three of his appearances in the European Ryder Cup team (2018, 2021, 2023).
Speaking to the media at Marco Simone on Tuesday afternoon, Rahm said of Garcia:
"I did talk to him and ask for advice. He did show me a lot of what to do at Whistling and obviously in Paris, as well.
"But I did have a little bit of a chat with him, and with Poulter, as well.
"Not that it's going to be easy to take on the role that those two had both on and off the golf course, but just to hear them talk about what they thought and what they felt is obviously invaluable information."
When pressed further on when he held these conversations, Rahm said:
"Oh, Poulter was a little bit longer than last week. Sergio as recently as yesterday."
Now one of the more experienced players in the team alongside Rory McIlroy, can Rahm pass on any useful experience and words of encouragement for the four rookies in this year's European Ryder Cup team?
Rahm replied:
"Well, that depends on the questions that they -- what they're asking me about. It really depends. I always tell them it's very easy to really be in your mind and your feelings because you don't really know how to process a week like this so ask as many questions as you can from anybody.
"There's no such thing as a stupid question. Just that curiosity is going to get you somewhere.
"At the same time, I understand that they're here wanting to prove why they're here and make their mark as rookies, but there's always something to learn from some of the great players.
"I don't necessarily mean golf-wise, it's just how they process, how they deal with a week like this. I think that curiosity is very, very important."
Rahm admitted he was extremely shy when he made his Ryder Cup debut in 2018.
"My first Ryder Cup I didn't ask one single question. I was about as quiet as one can be. I'm very shy and introverted by nature, so everything -- the whole week seemed a little daunting at first.
"And you're going into a locker room where people have been sharing for 15 to 20 years, so it's very hard to -- at least it was very hard for me to fit in right away like that.
"A lot easier the second time, though."
Rahm played in three matches that week and only took a point, but it was a big point at that given he took down a certain Tiger Woods in the Sunday singles.
Europe went on to win emphatically 17.5-10.5 at Le Golf National in France.
USA won last time out in a record 19-9 victory on home soil at Whistling Straits.
While they are defending champions this week, they are bidding to win the Ryder Cup for the first time on European soil in 30 years.
Rahm intends to keep the streak alive.
"It's a big deal. You want to stretch the streak as much as possible. Hopefully we can get into the 30s of years of Europe being undefeated here at home."
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