Barcelona midfielder Fermin Lopez was left bloodied after he copped a boot to the face.A delightful cross from Lamine Yamal found the unmarked Lopez in acres of space inside Atletico Madrid’s 18-yard box.Lopez left his blood on the turf following a violent collisionGettyHowever, Lopez could only direct his header straight at Atleti goalkeeper Juan Musso.But there was more pain to come for the Barcelona star.In the process of making the save, Musso’s outstretched left boot connected with Lopez’s face as he fell down.The collision left Lopez in a bloody mess on the turf at the Wanda Metropolitano, prompting Barcelona’s medical staff to race over.With Lopez looking worse for wear, Barcelona manager Hansi Flick instructed England international Marcus Rashford to warm up.However, Rashford was not required as Barca’s medics patched up Lopez and kept him on the pitch.Lopez’s gruesome injury was one of several early flashpoints in what was a pulsating start to the second leg of Barcelona’s Champions League quarter-final tie against Atleti.Diego Simeone’s side boasted a 2-0 advantage going into Tuesday’s tie.However, that went up in smoke within 25 minutes as goals from Lamine Yamal and Ferran Torres wiped away the deficit.Yamal struck in the fourth minute as he capitalised on a careless backpass from Clement Lenglet and drove towards goal, where he produced a composed strike past Musso.Lopez might look like a Bond villain with the scar he’s likely to sportGettyTorres then levelled the tie with a thumping strike across Musso from just inside the 18-yard box.However, Atleti winger Ademola Lookman restored the home side’s advantage in the tie in the 31st minute.The former Leicester City and Fulham winger capped off a lovely move that began in Atleti’s own half as he tapped home Antoine Griezmann’s squared pass from the right.