He said: "Next year sees the biggest change to the Formula 1 regulations for some time and the return of multiple in-season tests. To therefore be able to call on two such capable drivers is of huge benefit to the team."
Christian Horner: Red Bull test drivers "huge benefit"
Christian Horner believes that his Red Bull team will benefit from the input of their two test drivers during 2014.
Gene: 'Red Bull will keep dominating'>
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