Football ISL 2020-21 ISL 2020-21 Delhi Dynamos finalises assistant coaching staff The club has signed Gonzalo Yarza and Martin Ruiz as assistant coach and goalkeeping coach respectively for the upcoming season of the ISL. The two will work alongside head coach Miguel Angel Portugal. Team Sportstar 16 September, 2017 16:35 IST Gonzalo Yarza and Martin Ruiz will assist head coach Miguel Angel Portugal for Delhi Dynamos. - Ritu Raj Konwar Team Sportstar 16 September, 2017 16:35 IST Delhi Dynamos FC has signed Spaniards Gonzalo Yarza and Martin Ruiz as assistant coach and goalkeeping coach respectively for the coming season of the ISL. The two will work alongside head coach Miguel Angel Portugal. The 58-year old Yarza played for Athletic Bilbao for five years before being its head of Physical Training and Methodology for a decade. The 44-year old Ruiz has worked with Shanghai Shenxin and Henan Jianye and was also part of the Mumbai City FC in 2015. Visit our ISL 2020-21 microsite for more stories. For more updates, follow Sportstar on :