Former All-Star Nick Castellanos, known for smashing home runs, is crucial to the Philadelphia Phillies' offense. Off the field, he's a fantastic father, especially when attempting to teach the game to his son, Liam.The Phillies have recently demonstrated their desire to hit for power. They split a doubleheader with the Nationals on Tuesday at Citizens Bank Park, winning Game 1 8-4 and losing Game 2 5-4 thanks to five home runs.Nick's son, Liam, was present at the arena to cheer him on, and was spotted encouraging his father and making endearing motions. View this post on Instagram Instagram PostFans melted as Liam flashed a sign at the Phillies game in support of his father. A fan's reactionA fan's reactionA fan's reactionA fan's reactionA fan's reactionA fan's reactionA fan's reactionNick Castellanos' bond with his sonLiam is nine years old and often travels with his father to games to support the Phillies. Castellanos recently hit a home run for the Philadelphia Phillies against the Milwaukee Brewers, leaving his son awestruck. After Castellanos reached home plate, his son started bouncing up and down. Castellanos pointed at him, and the two celebrated the home run.MLB@MLBNick Castellanos' son is his No. 1 fan. pic.twitter.com/hr9HG5eF7L12256762Nick Castellanos' son is his No. 1 fan. ❤️ pic.twitter.com/hr9HG5eF7LThe Tigers selected Castellanos at number 44 overall in the 2010 draft out of the high school ranks in Florida. He made his MLB debut on Sept. 1, 2013.The Tigers dealt Castellanos to the Chicago Cubs in 2019. He inked a four-year deal with the Cincinnati Reds before the 2020 campaign. He was chosen to participate in the 2021 All-Star Game, received the Silver Slugger Award, and made the All-MLB Second Team.