I have a customer that has an established bluegrass yard and sod was used. Last year she had some kind of foreign grass creep in and it has taken over a small 5'x3' area. I was going to kill off the area with a glyphosate product and patch the area. Will I be able to make seed match eventually or should I use a roll of sod to patch the area? This property is absolutely perfect and these people are very anal so I have to be sure this turns out okay. Thanks for the help!