You might want to ask this question in the Combat Sports forum, since it's specifically about wrestling.
When an athlete is in-season, performance is the number one priority. Maintaining strength, or regressing as little as possible, is about all else I'd hope for. I definitely wouldn't go low carb during the season, unless you know with 106% certainty that your body thrives on low carbs.
Without knowing the rest of your training schedule, when you're in the gym you'd want to focus on low volume stuff that doesn't beat you up at all. Full body will be fine, but keep things basic, basic, basic. Consider Staley's 3-5 plan, using non-maximal weights.
Add in some foam rolling/pre-hab work and you're in a pretty good spot. (Though if you only have one day to lift, this obviously wouldn't be the best plan).