India fast bowler Ishant Sharma will join Sussex for the first two months of the English county season.
The 29-year-old has taken 234 wickets at an average of 35.94 in 81 Tests, and has also played 80 one-day internationals and 14 T20s.
He will be available for five games in the County Championship, and all eight of Sussex's group stage fixtures in the One-Day Cup.
"I am looking forward to my maiden stint in county cricket," Ishant said.
India is the ninth highest India wicket-taker in Tests and the fourth most prolific seamer.
Sussex were looking to bring in another fast bowler after Chris Jordan and Jofra Archer signed deals to play in the Indian Premier League.
"Securing Ishant's services has been very important for us," Sussex director of cricket Keith Greenfield said.
"It became crucial to sign an experienced international-quality seam bowler who could provide valuable support and know-how to the rest of the seamers."