If KC has a lot of lefties in their pen, given the reverse splits of Ragans, I'd start out best lineup. Save the right bats for later.
Henderson SS
Westburg 2B
Santander RF
Mountcastle 1B
O'Hearn DH
Rutschman C
Cowser LF
Urias 3B
Mullins CF
Personally I'd start McCann in place of Adley but I'd get booed out of OPACY.
McCann has caught Burnes' last three starts, all of which have been very good. I doubt if they'll deviate from that now. Plus, McCann's been hitting, and he might have a better chance at slowing Kansas City's running game since Burnes seems to think that holding runners close is overrated.