Source: Billy M | NwoReport
Trending: There Will Be Blood
The Duke of Cambridge, who is the president of the FA, met with both sets of players ahead of kick-off.
However, boos could be heard as William made his way across the pitch.
The booing seemed to increase during a rendition of FA Cup theme Abide With Me and then again when God Save the Queen was sung.
It is unclear if both sets of fans were booing, though observers reported many of them came from the Liverpool fans.