Marc Guiu was a hot topic for discussion with Chelsea fans after he made his club debut in the 2-2 draw against Wrexham on Thursday. Chelsea kickstarted their pre-season tour of the United States with an entertaining draw versus Wrexham. For Enzo Maresca, he took charge of his first ever match as the Blues head coach. Marc Guiu, 18, wore Chelsea colours for the first time since his summer arrival from Barcelona. The young striker played the opening 45 minutes against Wrexham and caught the eye. A report from Football.London claims that Chelsea think Guiu may be a £5m bargain. READ MORE: Who is…