Monfils won a big match, but then lost to Tien. Tien is a young American player. Monfils is ranked lower now.

Tien watched Monfils on YouTube when he was younger. It was a dream to play against him. Tien asked for a memento from their match.

Monfils was taking photos with fans. Tien asked him for an autograph on a tennis ball. Monfils said yes.

Monfils signed the ball. Tien shared a photo on Instagram. He said it was his first time asking for an autograph.

Monfils came back strong in the second set. He won seven games in a row.

Tien won the match. He hugged Monfils at the net. Tien asked the crowd to cheer for Monfils.

Tien called Monfils a legend. He said he got lucky because Monfils got tired.

Tien said it's amazing that Monfils is still playing at 39. He's happy to have played against him. It was a childhood dream.

Tien will play Tommy Paul next. Monfils will play in other events. He got special invites to the Cincinnati Open and the US Open.

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