Blackburn have signed Middlesbrough goalkeeper Aynsley Pears for an undisclosed fee and Leeds full-back Barry Douglas, Liverpool winger Harvey Elliott and Norwich midfielder Tom Trybull on season-long loan deals.
Pears, 22, made 25 appearances for Boro and has signed a four-year deal.
Douglas, 31, has won one cap for Scotland and Trybull, 27, played 16 times in the Premier League in 2019-20.
Elliott, 17, has made nine appearances for the Reds.
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