Answer:
"It'll be weird since I've been playing with him since we were five when we started out in T-ball."
Step-by-step explanation:
The phrase "It'll be weird since I've been playing with him since we were five when we started out in T-ball." it shows that the characters know each other and have had a friendship since they were children and that this friendship accompanied them until adulthood. This can be seen when the character says that they have been playing together since the age of five.