Monkey grass.

I have a huge area of monkey grass I want to get rid of. What is the best way to kill it or remove it. Last year I dug up a sizeable area as this was the only way to really get rid of it I was told. Guess what. It's back. I need to remove it to re landscape and sod the back yard and make it into a play area for my children with swingsets and grass etc. but this stuff is tough. I have a huge monkey grass farm right now and it's driving me nuts.
Please help,

Add pictures here
<% if( /^image/.test(type) ){ %>
<% } %>
Add image file
Upload is a website for homeowners and building and maintenance pros. It is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.