London Wasps director of rugby Dai Young believes that Tongan duo Taione Vea and William Helu will "add depth" to the club's squad.
Prop Vea has signed from New Zealand side North Harbour, while centre Helu has previously enjoyed a spell with Bristol, and Young has talked up the prospect of the two internationals playing for the club.
The 45-year-old told the club's official website: "Both of these players will add important depth to the squad.
"Taione is a developing prop and he joins a group of young front row players here who are all pushing each other very hard.
"William is a hard running player who covers a few positions in the backline and we're looking forward to their arrival."
Wasps begin the new Aviva Premiership campaign with a home fixture against Harlequins.