Bullocks.
I've played 3-4 hours of tennis in the scorching heat, then 4-5 hours later lifted heavy.
Now would I play tennis that long, then do legs? Probably not.
---
Also, again healthy food is going to be a bit more expensive only because you don't feel like you're getting the value you get when you buy junk food. If healthy food were cheaper than junk food, then almost everyone would just buy the healthy food by default. People buy junk food because it's cheaper in bulk and you get more volume.
Eating healthy though, you don't eat as many portions of food you do with junk food. You eat one salad and that's it, you generally don't go for seconds. So financially it really isn't THAT expensive. The $6 tub of spinach I bought can make me 4-5 salads depending on how much I portion it. Throw in half of an avocado, a hard boiled egg, and some honey mustard dressing and I really didn't spend that much to eat one salad, and it will probably fill me up in 20 minutes just as junk food would.
Something interesting I read as to why people who try to convert to salads have a hard time doing it, is because when you eat bad, you usually eat a lot so you train your stomach to expand. When your stomach keeps eating, it acts as a muscle so it won't tap out and tell you it's full until you've stuffed it enough. You don't have to do that with salads but if you eat a decent sized salad, then wait 10 minutes you will no longer be hungry. The urge to keep stuffing until your stomach stops, is the big difference. Eventually your stomach will adapt to only having to process the salad instead of a huge plate of mac n cheese. You'll get full faster.