Two Player Questions

I havent really watched much spring training yet, but was curious if anyone has an idea on these two things from what they have seen so far.

1. How has Josh Haders velocity been this pre season so far? Is it similar to last year/ declined or ticked up to previous years?

2. Does Zach Dezenzo have a legit shot to make the roster opening day? He has options, so my concern is they carry someone who doesnt.

His numbers seem pretty legit so far, but have no idea if he is facing quality major or minor league pitching at all.

Thanks.