As first impressions, this was not quite up there with Wayne Rooney’s one-man obliteration of Fenerbahce all the way back in 2004. But as the newest addition to this Manchester United squad donned the famous red shirt and walked out onto the pitch for the first time, we were immediately gifted a tantalising glimpse into the potential Leny Yoro boasts by the bucketload. Only a few minutes were on the clock before the £52 million signing from LOSC Lille showcased the speed, the strength and the silky smooth timing that have drawn comparisons with a young Raphael Varane and Rio Ferdinand. Rather …