Haas has confirmed Esteban Ocon will not race for them again in 2026 after his highly publicised row with team boss Ayao Komatsu.
Brazilian driver Rafa Câmara, who was already set to replace him in 2027, will make his debut this weekend on home soil at Interlagos' São Paulo Grand Prix.
Ocon was suddenly dropped by Haas ahead of qualifying for last weekend's Mexico City Grand Prix following an argument with team boss Komatsu.
Ocon later posted a statement confirming an disagreement had taken place, but denying that the meeting had turned physical as some reports had suggested.
However, in a statement released on Tuesday, the F1 team confirmed they would be moving on from Ocon.
"We have now notified Esteban Ocon that he will not return to a race seat with TGR Haas F1 Team this season," said team principal Komatsu.
"Such decisions are never made lightly, as was the case in Mexico City - but then, as now, we feel this is firmly in the best interest of the team moving forward.
"The conversations that ultimately unfolded between the team and Esteban remain an internal matter, and we will continue to respect the private nature of closed-door situations.
"Looking ahead, we've chosen Rafael Camara to drive alongside Ollie Bearman at the Sao Paulo Grand Prix.
"Having excelled in his TPC outing in August, we know Rafa's capabilities and we're looking forward to welcoming him into the team this weekend and working with him through his Formula 1 debut, driving the VF-26 in Brazil."
The incident gave Ryo Hirakawa a debut in Mexico City, with the Japanese driver taking an impressive point in 10th.
Highly rated Câmara will debut in his place this weekend alongside fellow Ferrari junior Oliver Bearman.
Their partnership together in 2027 has already been tipped as a potential showdown for a future elevation to Ferrari.
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The makeup of Haas' lineup for the remaining three races of the season -- Las Vegas, Qatar and Abu Dhabi -- is yet to be confirmed.
However, F1's rules state a team can only run a maximum of four drivers in a season. As Haas has Bearman and will, by the end of the weekend, have used Ocon, Hirakawa and Câmara, that would appear to rule out reserve driver Jack Doohan from taking part in any of the final events.
Teams can ask for the rule to be relaxed in the case of illness or unforeseen circumstances.