Jaylen Brown never requested a trade from the Boston Celtics, a source with knowledge of the situation told ESPN. The only thing Brown asked for was to be involved in deciding where he would be sent, a request Boston ignored as they eventually traded him to the Philadelphia 76ers. The source disputed a report from NBC Sports and Celtics TV analyst Brian Scalabrine about Brown's "demands" and "trade request." Scalabrine later walked back his clai…