Brazilian Spireite João Pedro Soares Ferreira flew with his parents Carlos and Cileide from Rio de Janiero last week to be a part of the club's end of season celebrations.
The samba Spireites supporters touched down in England late in the week and headed directly to Derbyshire to catch a True Blue Travel coach over to Oldham on Saturday.
"We're excited, we're here to support Chesterfield," João Pedro told Spireites Player. "I think we are the only Spireites in Rio.
"I first saw Chesterfield on the FIFA computer game and they were the most difficult team to beat in League Two so I find it interesting, I searched more about the club.
"Everything here is completely new. Until last year at Wembley I had never been to Europe before, Chesterfield is a cool city with cool people who are very receptive. It is like a dream being realised to be here."
Not surprisngly, João Pedro is delighted that his trip has coincided with the club's strong form final play-off push.
João Pedro said: "We were having good results and we're looking forward to getting into the top six to go to the play-offs. Maybe we can go into the Championship,
"That would would be one of the greatest moments in the club's history, we are here and it's fantastic."
After taking in the game at Boundary Park the Brazilians have a busy week of sightseeing before they return to the Proact on Saturday for the match with Bristol City.
"We will spend the next few days in Chesterfield, we will explore a bit and next week we'll be at the Proact again to see the game against Bristol and attend the end of season bash."