Bruce Rioch was one of the most successful managers in the club's history - having won back-to-back promotions after the club staved off closure.
Rioch, who was a coach at the club, was appointed manager by chairman Alf Duffield in February 1986 with Boro teetering on the brink, but he could not prevent relegation into the third division.
With relegation came liquidation and both Rioch and his assistant Colin Todd lost their jobs as the gates to Ayresome Park were locked.
But he remained loyal to the club and after a dramatic reprieve a new club rose from the ashes.
The 1986/97 season saw the re-birth of Boro and, led by Rioch, the club won promotion back to the second division at the first attempt. It was largely a team of young, local players who formed the core of that successful team, and they went on to repeat the feat the following season.
Despite missing out on automatic promotion in 1988, Rioch's young charges sealed a top-flight return by beating Chelsea over two legs in the Play-Off final and, in doing so, Boro became the first second division team ever to gain promotion in this way.
The same season also saw Rioch's side take first division champions Everton to two replays an incredible FA Cup meeting.
But relegation back to the second division followed in 1990 - despite Boro not falling into the bottom three until the final day - and the club struggled to adapt to life out of the top flight.
With Boro deep in relegation trouble and on the brink of a first ever Wembley appearance in the ZDS Cup, he was sacked and replaced by his assistant, Colin Todd.
Rioch was the son of a Scottish Regimental Sergeant Major, the tough tackling wing-half began his career with Luton but really made his name at Aston Villa.
Signed by Derby County for £200,000 in February 1974, he was an ever-present in the Rams' 1974-75 League Championship winning season, finishing as top scorer and winning the first of his 24 Scotland caps.
He went on to become Scotland's first ever English-born skipper, captaining them in the 1978 World Cup finals in Argentina.
After parting company with Boro he later managed Millwall, Bolton, Arsenal (he was the last permanent Gunners manager before Arsene Wenger took over in 1996), Norwich and Wigan Athletic.