Haas have announced that Romain Grosjean and Kevin Magnussen will be retained for next season.
The duo will stay with the American team for a fourth consecutive campaign.
Grosjean, 33, has been with Haas since they formed in 2016, while Magnussen, 26, joined a year later following short spells with McLaren and Renault.
Haas finished fifth in last season's constructors' standings, but have struggled this year, and head into the final seven rounds of the season in ninth. They have scored points at just one of the last eight grands prix.
Grosjean and Magnussen have also been involved in a number of on-track altercations - clashing in Spain, Britain and Germany.
"It's been a tough year for us in 2019, but our ability to tap into our combined experiences will help us learn, improve, and move forward as a unit in 2020," said Haas team principal Guenther Steiner.
"Experience, and the need for it, has been one of the cornerstones of Haas, and with Romain Grosjean and Kevin Magnussen racing for the team in 2020, we continue to have a driver line-up that offers us a solid platform to continue our growth.
"Their understanding of how we work as a team, and our knowledge of what they can deliver behind the wheel, gives us a valued continuity and a strong foundation to keep building our team around."
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