Why do boxers have to tape their hands and wrists?

[Mike_Yates]

Why do boxers have to wrap their hands and wrists with tape?

http://www.expertboxing.com/wp-content/uploads/2011/07/how-to-wrap-your-hands.jpg

 

[lovecraft68]

Keeps the wrists straight to avoid injury while hitting the bag or an opponent. It also makes your fist tighter inside the glove so there is no give when you hit and you can deliver a harder blow.

 

[Palamino19]

Keeps the wrists straight to avoid injury while hitting the bag or an opponent. It also makes your fist tighter inside the glove so there is no give when you hit and you can deliver a harder blow.

Yeah, this. it also adds a bit of weight and hardness, but the main reasons are as Lovecraft states.

 

[Mike_Yates]

Do MMA (Mixed Martial Arts) fighters do the same thing?