David Bentley has signed a new contract at Blackburn, tying him to the club until the summer of 2011.
The 22-year-old England Under-21 midfielder, who joined Rovers from Premiership rivals Arsenal in January last year, has missed only one first-team game this season, scoring six goals.
Manager Mark Hughes said: "David has really blossomed this
season to produce a consistently high level of
performance. He is a great talent with a big future and we
are delighted to have signed him up for the long term."
Meanwhile, Irish youngster Cillian Sheridan has signed a new three-year contract with Celtic after making an instant impact on his senior debut.
The 18-year-old came off the bench to set up Kenny Miller's winning goal at Inverness on Sunday, which carried Celtic through to Scottish Cup semi-finals.
Celtic boss Gordon Strachan believes the youngster's ambitions are closely tied in with the club's own vision for the future, and considers Sheridan a player who can make a long-term impact.
"We are delighted to have secured Cillian on this long-term contract," said Strachan. "He wants to play his football here at Celtic and we are pleased that he has committed his future to the club. He is a talented player and, like other players at the club, he has the potential to achieve a great deal in the game."