The Knockout Rule by Kelly Siskind

The Knockout Rule by Kelly Siskind -- 340 pages

Growing up with an adoring father for a boxing legend isn’t all sunshine and rainbows. It looks more like hospital visits, bloody noses, and cracked ribs. Isla Slade now works as a physiotherapist, helping athletes heal their bodies. Except for boxers. She has no interest in reliving the stress of her teen years. Dating someone in the boxing world? She’d rather snort wasabi powder. Until she meets Preston Church.

Preston manages heavyweight boxing darling Brick Kramarov. A brute who’s built tougher than his name, with a cocky attitude to boot. She wants nothing to do with either man, but her father begs her to help them prepare for a huge Vegas fight. She doesn’t expect Preston to recite romantic poems and slowly break her resolve. His fascinating mind gets under her skin, even if his star athlete reminds her how much she hates boxing.

Too bad it’s Brick coaching Preston how to woo Isla, falling for her from the sidelines. Once she finds out, she’ll have to decide if she can risk loving another man who puts it all on the line for the knockout.

Black God, v.1 by Dall-Young Lim

Black God, v.1 by Dall-Young Lim - 222 pages

One night Keito is attacked while eating ramon and loses his arm.  The next morning he wakes up whole with a strange girl in his apartment.  Turns out she replaced his arm with hers and now they must enter into a pact so both can survive those out to harm the girl.
I did not like this Korean manga.  It didn't make much sense.  It was difficult to tell which character was supposedly speaking.  And the language was gratuitous.  Overall, not one I would recommend.