Rovers have completed their second deadline day signing with the capture of Marvin Emnes from Swansea City.
The 28-year-old forward joins from the Premier League side on loan until January 15th 2017.
Rotterdam-born, Emnes began his footballing education at Sparta Rotterdam's Academy, before breaking into their first team at the age of 17 during the 2005-06 season.
The following summer, Emnes featured against Rovers in a pre-season friendly between the two teams, which Sparta won 1-0.
After three seasons with the Dutch side, in which he scored nine goals in 55 appearances, Middlesbrough brought Emnes to the Premier League in the summer of 2008 in a big-money move.
Able to play up front or on the wing, the dreadlocked Dutchman made an immediate impression, scoring on his debut in a 5-1 Carling Cup win over Yeovil Town. However, despite that bright start to his Boro career, the team struggled and relegation was followed by a change of manager and fewer first team opportunities.
A brief, yet successful spell at Swansea City followed, in which Emnes scored twice in a month-long loan, but he was quickly recalled by new Middlesbrough boss Tony Mowbray, who gave him a regular run in the side – the highlight being 18 goals in the 2011-12 season as Boro just missed out on the Championship play-offs.
Emnes would go on to score 31 goals in 162 appearances for Boro before Swansea manager Michael Laudrup brought the Dutch Under-21 international back to South Wales in January 2014. Joining initially on loan, the move was made permanent that summer.
Like his time on Teesside, Emnes has found first team chances restricted by managerial changes over the past two seasons, with the Dutchman scoring three goals in 24 appearances before making the move to East Lancashire.
His capture concludes Rovers' business during the summer transfer window, with 12 new signings arriving at Ewood Park.