Career
Trifonov started his football career with Etar 1924 before moving to Slavia Sofia in the year 2005. He made his A PFG debut for the Sofia-based club in August 2005, but did not become a regular to the end of the season and returned to Etar.References
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* Living people 1984 births Men's association football midfielders Bulgarian men's footballers FC Etar 1924 Veliko Tarnovo players PFC Slavia Sofia players PFC Vidima-Rakovski Sevlievo players FC Lyubimets players SFC Etar Veliko Tarnovo players First Professional Football League (Bulgaria) players Footballers from Veliko Tarnovo {{Bulgaria-footy-midfielder-stub