Not sure if this counts but story time :
Had this five a side tourney when I was still at school, like 14 or something.
I was playing as a striker "mainly" because I couldn't do anything else other than to kick the shit out of the ball really hard and hoping it goes in. I couldn't dribble, I couldn't do accurate passes, friends always told me to stay near the box when They had the ball. Being the underdog player, I tried to emulate Park Ji Sung as much as possible (He's my idol). I knew my limitation so I usually helped defending and ran my bollocks off.
It was an alright team. My partner striker was this massive Indian kid (a transfer student) who's so nice and had dribbles like Ronaldo but didn't have that scoring instinct (weak shoot + bad positioning). If We were combined We'd make a complete striker. Our GK was fat (no offense) so We didn't expect him to jump and make outrageous saves. The players needed to work hard winning the ball.
Anyway We managed to get into the semi after several high scoring games. In the last minute in semi the fat GK threw the ball to me, bypassing the entire midfield when it was 3-3 and I scored the winning goal (just kicking it straight to the keeper really hard) & took us to the final.
Now before this I wasn't the most popular, every girls loved the Indian kid because He had flashy dribbles. But I took the team to the final so my teacher said He needed my hard work once more and They seemed to love it. The night before the final I was getting very nervous, the thought had crept into me that if I score another winning goal, maybe.. girls will like me and I can be as popular as the Indian kid. I literally couldn't sleep that night and my nervousness caused me to wank rather intensely.
I slept like a baby after because I was knackered but I thought the sleep would be enough & I had bought power drinks anyway.... It didn't happen. During the final match I could only run for about 4-5 mins (I worked hard) and spent the rest of the match pretending I wasn't tired.. but I swear my knees were weak, mouth dry, my shoots weren't as hard as usual, my vision was blurry, I could barely run. We had no striker substitute and We lost the match 5-0. I had like 6 chances to score but none of them got in.
I still feel guilty sometimes. But the funniest part wasn't that, after the game I told my schoolmate I was very tired in that game and We could have won. And his response surprised me. Said He'd seen someone in a white sweater behind the opponents' goal the whole time during the match, crouching. He said the guy kept starring at me and probably did some black magic to prevent the ball from getting in and made me feel tired.
He didn't know it was because of masturbation.