Neeraj Chopra's Silesia Diamond League Appearance Uncertain After Surgery

Imagine two very strong people who throw a long stick, called a javelin, really far.

These people, Neeraj Chopra from India and Arshad Nadeem from Pakistan, were supposed to compete soon.

However, Neeraj had to get surgery on his leg.

This means he might not be able to throw his javelin at the competition, which would have been a great show.

This competition was expected to be the first time they met since the Olympics last year, where Arshad won the gold medal by throwing a record distance.