Australia leg-spinner Adam Zampa will re-join Essex Eagles for a third T20 Blast campaign in a row in 2020.
The 27-year-old played in the 2019 group stage, taking 12 wickets, before Essex went on to win the title.
Zampa has featured in 48 one-day internationals and 27 T20 games for his country, and has career-best bowling figures of 6-19 in T20 cricket.
"He's one of the best leg-spinners around at the moment," said Essex head coach Anthony McGrath.
"He's been excellent for us the last couple of seasons and he's a great guy to have around the dressing room, so I'm delighted he's going to be back with us."