Agile keeper, who gave Spurs good service in the three years he was at White Hart Lane, but failed to reach those heights after he left the club.
Started with his local club Wimbledon and rose through the youth teams and reserves to make the gloves his own. Rose to national attention in the Wimbledon side of the 1990s and his displays earned him recognition by his peers, as he went into the PFA Team of the season in 1998. But within two years, Wimbledon's relegation in the 1999-2000 season, saw Spurs moved to sign the keeper and he took over the number one shirt from Ian Walker.
A solid keeper, who was fit, but not always great on crosses, Sullivan's time at the club spanned a tumultuous period in management terms, with him being signed by George Graham, having Glenn Hoddle come in to replace him and there was the club being taken over by ENIC during the same time.
So, the team was in flux and while a squad worthy of a challenge towards the top of the table was assembled, it rarely got the consistency needed to do so. The closest to success came in the League Cup in 2002, when Spurs lost out to Blackburn Rovers in the final.
With David Pleat taking over as caretaker for the bulk of the 2003-2004 season, Neil dropped out of contention and on leaving Spurs, Neil signed for Chelsea, but only got a handful of games before heading for Leeds United, where he replaced Spurs bound Paul Robinson and was at Elland Road for three years, before his time there was soured by claims of him being over-weight by the management and his loan out to Doncaster, who he joined permanently when his contract with Leeds expired.
Spent the last years of his career at the Keepmoat stadium and won promotion with the side to the Championship, where they established themselves with some good football and with plenty of saves by Sullivan.