argentine jorge lopez was killed in a suspicious road accident while in sao paulo in july .
guardiola was sporting the top - which read ` #justiciaparatopo ' - during his pre-match press conference before bayern munich emphatically dumped porto out of the champions league .
guardiola wore the top demanding justice for jorge ` el topo ' lopez was killed when a taxi he was travelling back to his hotel in was hit by a stolen car .