'Calves like Adonis': Phil Mickelson explains his in-home exercise routine

Phil Mickelson, a longtime holdout of social media, is now all in.

"I didn't realize what a great way it was to engage, connect and interact with people," Mickelson said in January.

His latest installment on Twitter: A calf-muscle building exercise that you can do from the comforts of your own living room. The key, said Mickelson, is that you do these exercises morning and night.

In no time, you'll have 'calves like Adonis', he added.

Mickelson's calves became headline worthy last month, when the PGA Tour announced players were allowed to wear shorts during their practice rounds and pro-ams. A photo of Mickelson's toned calves caught fans' attention.

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He is taking this week off instead of playing in the Valspar Championship. Mickelson missed the cut last week at The Players Championship after rounds of 74-74 at TPC Sawgrass.

"I missed two cuts in a row, so that's not very encouraging," Mickelson said last week. "But I've got next week off. I'll go home, get a little rest and work a few things out. But for me, the biggest thing has been putting. I just haven't been putting anywhere near like I did last year, and I just got to get that back.

"If I do, I'll be in good shape and I got plenty of time to turn it around."