Please identify this lawn weed

[TonyPrin]

Please help me by identifying the weed shown in the attached photos. I didn't even notice this last mow but now it's completely taken over an 8X8 area crowding out or somehow killed everything else. It's in a fairly sunny area although north sloping. Any information would be greatly appreciated.

 

[BlazNT]

To young to really tell but it maybe Purple Deadnettle or Purslane