I saw the tired basketball player lean against the locker ve I saw the tired basketball player leaning against the locker arasındaki fark nedir?Sadece örnek cümleler vermekten çekinmeyin.

The first one "I saw the tired basketball player lean against the lockers" show that you saw him stand near the lockers and saw him lean on the lockers. You basically saw the whole action happen.
The second sentence, "I saw the tired basketball player leaning against the lockers," means that you just came to the scene and saw the player leaning already. You saw the action that had already happened but was still happening.
I hope you can understand this. I know it's a bit confusing..