1. My partner was lousy
  2. Shuttle went through hole in the net
  3. The lights were glaring
  4. That was your ball, partner
  5. Tournament shuttle was bad
  6. Linesman was cross-eyed
  7. My string was too loose
  8. The ball was too fast
  9. I wore new shoes I was 'off' today.
10. I think I'm sick
11. I was not yet ready when he served
12. I didn't notice that he was left-handed
13. His service was illegal
14. Can he do that?!
15. It was too hot at the club
16. It was too windy today
17. There was a draft coming from somewhere
18. I have a sprain
19. I didn't sleep well last night
20. I didn't warm up before playing
21. They cheated in the scoring
22. They kept directing the ball to my partner
23. They said they were only class 'B'
24. My partner kept getting my ball
25. Oh...have we started the real game?
26. They used to be with the national team
27. My girlfriend quarreled with me last night
28. The ceiling was too low
29. I'm on a diet
30. I have LBM
31. It's my monthly period
32. I forgot to wear supporter
33. My partner kept blocking my way
34. My partner was obstructing my view
35. It was a bad day at the office
36. Opponent's form was so unorthodox
37. I haven't played in two weeks
38. My girlfriend was cheering for him
39. My new shirt was itchy
40. The floor was slippery
41. My partner's rotation was wrong
42. My partner's defense was weak
43. The ump was opponent's relative
44. The audience was too noisy
45. There was dripping from the roof
46. The courts here seem smaller
47. They have home court advantage
48. The pairings were wrong
49. They had secret training
50. I get conscious when I'm being video-taped

Whatever!!