This is a very, very bad idea.
Clearly you already recognize the danger of leaving a two year old in the hot sun for such an extended period.
A two year old isn't going to be able to walk the grounds as an adult. Distances too great, especially in that sun. That means having a stroller to manage.
And the poor fans sitting near you...a two year old doesn't understand the need to remain quiet.
Don't subject yourself, your child, your fellow fans, and the players to this.
Only on Talk Tennis can you find people who believe
that 10 feet of lead tape has no effect on a frame...