So, here is the 秒 part of the Haikyuu! Referee Alphabet.
U for Up Referee
V for Violation
W for Warning
X for End of Game
Y for Yellow Card
Z for Zones
Yes, I know, "End of Game" doesn't start with "X" but few words do, and the sign does look like an "X". The picture for "Zones" is also the only one which is not from a calendar. Frankly, those last letters were among the hardest to match.
so, I felt that the Club could use some content, so I started with creating a Haikyuu Alphabet. I am actually planning to do multple set which can be user together, but the first time I felt is ready to be shared is the Referee Alphabet, in which every letter stands to something related to Referee judging in Volleyball. I mostly used pictures from the Haikyuu calendar for those. For the article, I downseized the pictures, but if 你 want to grab and use them (feel free to do so), you'll notice that they are actually quite large, so that 你 can easily adjust them to your needs.