First of all, I'm a hack when it comes to betting tennis so don't take this too seriously.
What I like about Putintseva
Yulia Putintseva only played set yesterday when her opponent retired due to injury. She's only 21 years old and put away her previous opponent 6-0 in the last set. I think she can add some energy here against Venus. Certainly she will be motivated.
What I don't like about Venus
Why am I betting against her? Well, she's 35 years old. She had a few problems in her last match against Sevastova winning the first set only 7-5. I think Putintseva can come close in at least 1 set like Sevastova did. In fact, I'm predicting Putintseva may win one set although I'm not bold enough to bet on it.