England and Hampshire seamer Reece Topley will play white-ball cricket only in 2018 following two seasons of injury problems.
The club and Topley consulted with the England and Wales Cricket Board who advised the left-armer to manage his workload as part of his rehabilitation.
The 24-year-old has not played since July 2017 after suffering a recurrence of a stress fracture in his back.
"It has been a frustrating time for me as a young bowler," Topley said.
"It is hoped that this proposal will assist me by preventing further injury as my body matures.
"Going forward, I do hope to return to red-ball cricket and still harbour ambitions of being the first left-arm fast bowler to take 100 Test wickets for England but that remains a long-term goal."
Topley, who also missed most of the 2016 campaign with hand and back injuries, has only played three first-class matches in two seasons for Hampshire since joining from Essex.