By Daniel Orme Real Madrid star Vinicius Jr has bemoaned Kyle Walker’s injury – despite being handed a potential Champions League boost. The Manchester City star was withdrawn just 20 minutes into England’s 1-0 friendly defeat to Brazil on Saturday. The injury has seen Walker pull out of the Three Lions’ squad ahead of Tuesday’s game against Belgium. He was replaced by City teammate Rico Lewis. Walker will undergo further tests to undergo the severity of the problem. As it stands, he is now a doubt for this weekend’s key clash against Arsenal, as well as Man City’s Champions League quarter-fin…