Quoted from Arturo Hi. Thank you for the reply. "I don't know much about American Football so I'm assuming the word: cold is untried?": I'm using cold as a personality a trait. The protagonist grew up being abused by his father and his mother was not present since he was 7 years old. So due to this detachment from the caregiver, now in the adult stage, he does not deeply connect with people. Being pushed by the circumstances to take care of his niece will demand the protagonist to connect with his own past and people around him.

Ah, okay. Well that doesn't work imho, cause you're tacking on the personality trait with the occupation or ambition part of the logline.

Cold--hearted maybe...

Steve and Matthew gave more on-point suggestions imho in linking the situation with the conflict/dilemma/choice.

You don't need to tell us all the full story details in the logline with his past, the sister, father etc. That's detailed in your actual story.

I can't better Steve's suggestion. The nuts and bolts are there.
Write the script, refine the log later if you want.

Ahoy Arturo,

Yes, loglines are tricky. I like to use the old adage "Throwing spaghetti at the wall and seeing what sticks." Sorry, I luv the imagery.  And I luv to cook. Throwing spaghetti on the wall is how you know spaghetti is fully cooked. If it sticks to the wall, you have cooked it long enough. It it does not stick, you need to cook it more.  However, the real problem with that adage is that overcooked spaghetti sticks to the wall too! Ha! Ha!  

Quoted Text "I don't know much about American Football so I'm assuming the word: cold is untried?": I'm using cold as a personality trait. The protagonist grew up being abused by his father and his mother was not present since he was 7 years old. So due to this detachment from the caregiver, now in the adult stage, he does not deeply connect with people. Being pushed by the circumstances to take care of his niece will demand the protagonist to connect with his own past and people around him.

I get it, i do, but be careful -- you don't want your logline to become way too character dense - coz it'll suck all the oxygen out of what might be an interesting story about your protagonist.

Quoted Text When a college football player is tasked with fostering his niece after his sister’s death, his new parenting role threatens to jeopardize his dream of turning pro.

Personally I prefer Steve's suggestion.

That said, as you write your story, it evolves, things develop, and things constantly change. So Libby is spot on with her comments. G'Luck with it.

Thank you guys!1 i really, really appreciate your comments!!

Agreeing to raise his late sister’s kid, surfaces a college football star’s trauma which threatens his life-long dream of playing in the NFL.

With a lucrative pro career almost in his grasp, a troubled college football star chances losing it all when he agrees to raise his late sister's developmentally challenged daughter.