Eljae told the Herald on Sunday that the hurtful sideline comments had made him "sad".
But he was committed to his team-mates and was encouraged by the comments of friends, family and complete strangers who told him "who cares about them? Keep going".
"I love the friends I make and our team," he said.
Eljae's grandmother Marietta Mara was among those cheering him on proudly yesterday.
She told the Herald on Sunday the family had received an "overwhelming" amount of support from people around the world after Rochelle's online posting.
Celebrities to post messages of support include All Black star Liam Messam and dance choreographer Parris Goebel.
Sir Peter Leitch has also secured a Warriors jersey for Eljae and season passes to the club's home games for his family.
"They've all said good on him. A lot of them have children in Eljae's situation and it's good my daughter has spoken out. "She didn't realise the response she would get."
The shy 10-year-old's confidence was growing thanks to his supportive team-mates and coach, Marietta said.
"Eljae's been through this before so it's nice to get this out there," she said. "He is very self-conscious [about his weight]. I have seen him having a cry in the last week. It hurts."
Marietta said she hoped the people who made the comments reflected on their behaviour and the example they were setting for their own children.
The Maras are a tight-knit family and were working hard to build his confidence back up, she said.
"We don't want him to be angry, we want him to move on. He knows he's getting support."