Brighton have agreed a deal for Germany midfielder Mahmoud Dahoud to join on a free transfer when his contract with Borussia Dortmund ends on 1 July.
The 27-year-old is a Syrian-born defensive midfielder and will join on a four-year contract.
The Seagulls have also signed Brazil forward Joao Pedro from Watford and Liverpool midfielder James Milner.
"I'm sure he is going to be a top player for us," said Brighton boss Roberto de Zerbi.
"I'm excited to have Mahmoud in my team. I wanted him when I was at Sassuolo."
Dahoud has been capped twice by Germany and played 141 times for this season's Bundesliga runners-up, but was restricted to just 10 appearances after having shoulder surgery last summer.