Stoke have signed Liverpool midfielder Charlie Adam and Blackburn's French youngster Steven Nzonzi.

Adam, 26, who joined the Reds in a ￡9m move from Blackpool in July 2011, is thought to have cost ￡4m.

The Scotland international, who has also played for Rangers, has signed a four-year deal.

Frenchman Nzonzi, 23, also signed a four-year deal for an initial ￡3.5m that could eventually rise to ￡5m.

He had not featured for Blackburn this season after making it clear he wanted to leave the club following their relegation.

Nzonzi joined Rovers from French side Amiens , external in 2009 and made 97 appearances for the Ewood Park club, scoring three goals.

Stoke manager Tony Pulis believes the addition of Adam will make a significant improvement to his team's attacking options.

He said: "It's no secret that we've been looking to bring more goals to the squad and Charlie is a fantastic signing in that respect.

"Not only will his creativity and his eye for delivering a pass be a great asset to us, he scored 12 goals for Blackpool in the Premier League two seasons ago."

Adam added: "This club's on the up and it's great to be a part of it. I can do this club proud and I'm looking forward to the chance of playing in front of their passionate supporters."