Career
He has also played for Bulgarian teams of Spartak Pleven, Yantra and Hebar, French side Lille OSC and Spanish teams Levante UD, Valladolid and Celta Vigo. He was the top goalscorer of the Bulgarian "A" Professional Football Group in 2001–2002 season with 21 goals netted for CSKA Sofia. In October 2008 Manchev again became part of the most successful Bulgarian club"s squad.
In the last match for the autumn period of the 2008-2009 season against Lokomotiv Mezdra he received an injury in his knee ligaments, which prevented him from playing football for about 9 months.
He was expected to be back in play for the next season. Manchev is a CSKA Sofia"s fans" favourite.
Although he was injured most of the season 2008-2009, in which he played only 4 matches, he scored 4 goals and made a few assists, so on 16 June 2009 it was said that in the next few days he would sign a new contract, which would make him a CSKA player for the next two years. After all he signed a new one year contract on 24 July 2009.
In the summer 2010 Manchev was transferred to Akademik Sofia, but did not make any appearances in official matches for the team
In February 2012, Manchev signed a contract with Loko Sofia. In March 2015, Manchev was appointed as assistant manager of CSKA Sofia. He was part of the Bulgarian 2004 European Football Championship team, who exited in the first round, finishing bottom of Group C, having finished top of Qualifying Group 8 in the pre-tournament phase.