Getty Images SportAdam Drury'Something beyond biology' - Ex-Barcelona & Everton star Gerard Deulofeu may retire at age of 30 due to freak injuryG. DeulofeuUdineseSerie AFormer Barcelona and Everton forward Gerard Deulofeu may be forced to retire after a series of knee injuries. Article continues belowArticle continues belowArticle continues belowArticle continues belowGerard Deulofeu may be forced to retireForward has suffered several knee injuriesLeft Udinese by mutual consent this weekFollow GOAL on WhatsApp! 🟢📱