A brand new Boxing anime is airing which celebrates the 50th anniversary of "Ashita no Joe" (a very old boxing anime) The anime focuses a young man fighting in underground rings in order to earn money.
The main element is that boxing has been enhanced by nanotechnology, using a thing like exoskeleton allowing them to throw deadly punches at an even greater speed.
Watched a few scenes from the released episodes and trailers and overall looked pretty good. This won't be coming close to Hajime no Ippo but still I think it's gonna be worth watching.
Do comment here if anybody has started watching. As for me I'll wait till all episodes have been aired.