 Complete the following phrase:  This is a list of seasons played by Middlesbrough Football Club in English and European football, from 1883, when the club first entered the FA Cup, to the most recent completed season. Middlesbrough Football Club were founded on 18 February 1876, by members of Middlesbrough Cricket Club. For the first years of their existence Middlesbrough participated in competitions such as the Sheffield Cup and the Cleveland Association Challenge Cup. The club have won only one major trophy in their professional history, the Football League Cup in 