Each week we'll be highlighting some of the most hilarious, uplifting, and overall best tweets from the so-called "Tennis Twitter." Welcome to the Best Tweets of the Week.

1. Katie Boulter

Boulter is looking forward to the 2022 season. However, the Brit is still not finished with 2021, currently participating in ITF tournaments, but she recently shared her training to prepare for January. Going for a road run, Boulter looks fired up and ready for whatever comes in the New Year.

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2. Andre Agassi

Despite having been retired for quite some time, Agassi is still providing inspiration. The former world No. 1 shared a black-and-white photo of himself on a court with a motivating caption. Anyone can look at the photo and get pumped to practice the day away.

3. James Blake

Based on this tweet, James Blake has a good sense of humor. The former world No. 4 responded to a tweet asking followers if they remember the moment when Roger Federer defeated him at the Tennis Masters Cup in China. It was a straight-set victory for Federer and clearly Blake hasn't forgotten.

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4. Jelena Djokovic

The 2021 edition of the ATP Finals finished with Alexander Zverev lifting up the trophy. The German received congratulations from many, including Jelena Djokovic, the wife of Novak Djokovic. This is the world No. 3's second year-end title after raising the trophy in 2018.