Dani Clos will be behind the wheel of HRT's F1 car at the first practice session for the British Grand Prix.
HRT announced on Friday that the Spaniard, who was also in action for the backmarker outfit at last month's Spanish GP, would replace Narain Karthikeyan in FP1.
"I'm very happy to step into the F112 once again in Silverstone, a place where I've got good memories since I've made the podium every time I've been in GP2," said the 23-year-old.
"After Barcelona I've really been looking forward to this new opportunity. The work we're carrying out with the team is positive and I think that I can make a good contribution.
"I will be able to run in better conditions than in Barcelona because the car was new back then and I had to carry out various aero tests.
"Now I've got a new opportunity, not to prove anything but to work with the team and evolve as much as we can."