My Son is complaining of a sore bicep. He is 9 years old and our ace pitcher. We have been throwing a lot and have been very careful about warming up prior to ever picking up the ball. By a lot I mean 4-5 days a week playing catch with 30-40 pitches in the bull pen on those days.
He has always had a good arm and is very accurate (but we have always thrown almost daily during the season). We took the fall and winter off from baseball and starting getting back into throwing about a month before the season. We are halfway through the season. 6 days ago he went 70 pitches for 4.33 innings with 10Ks. Well over 50% first pitch strikes. No complaints of a sore arm ever. Than 3 days after this outing we were playing catch and a little mechanics work (maybe 40 throws total) and he complained his bicep hurt. I noticed he was not throwing hard and mechanics were all over the place. When I asked if his arm hurt he said yes. This is the first he has ever complained of a sore arm. He said he woke up that morning with a sore bicep. This was 3 days after his outing with no throwing between. I have shut him down. He has not thrown since and he says it’s still a little sore but better.
Very concerned dad looking for ideas. We have practice tomorrow and I am not sure I should let him throw at all. No games until next week Monday.
Beginning in March he has pitched 19 innings and thrown about 350 pitches.