StreetEndBlue
Player Valuation: £10m
Dann steps across him, shoulder into the chest. Niasse carries on towards the ball as contact is made.
Answer me this; if Niasse continues running, does Dann's shoulder stop him running to the ball unimpeded?
If the answer is yes (which it is), then it's a foul.
Dann's arm is in front of the player, he has obstructed a movement to the ball. It's a penalty.
Rather than a "dive" or "embarrassing", I'd be more embarrassed if I hadn't gone down, as it's part of the game.
Dress it up whichever way you want but it's not a foul and not a penalty.