The club is one of the few Dutch clubs to have a grass pitch.
In 1958 Excelsior became the first Dutch club with covered stands.
Later, in 1974, Excelsior also were the first Dutch club with shirt advertising.
His Dutch club decided to end his contract.
In 1981, he had trials for Dutch club, Feyenoord, receiving a favorable response from the club.
The Dutch club sued to the Court of Arbitration for Sport and won.
In late May, the Dutch club decided to sign him permanently.
The final result was 5-1 to the Dutch club.
The 21 year old Bulgarian keeper signed a contract for three years with the Dutch club.
The Dutch club, a four-time titlist, ended a streak of 14 games without a loss (10 victories and 4 ties).