Think it's important to remember that he and Januzaj are still very young, playing in a young side. Average age of our starting line up was youngest of any team in PL this season. Apart from Di Maria, the older players that are playing aren't exactly helping them either. There's a real lack of leadership too.
Doesn't necessarily mean anything though. I doubt they know how serious it is yet to be honest. Didn't look great but he did play on a bit. Played with injury for England the other night and played on today. Nice to see him wanting to play on but is it perhaps a bit naive from him to be doing so?