Just play tennis. Life is too short to worry about dumb stuff like that. If you love it then do it. Plus unless you are out there playing for like 5 hours a day nonstop you aren’t going to notice any difference. Just eat a little bit more and you’ll be alright. If anything the cardio will make you more hungry so you can get even more protein and calories in.

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Yes it’s worth it lol. Just eat more to make up for the calories burned if you’re trying to put on weight

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