All those silva muscles could require more oxygen, it looks like after that career changing brown fight cardio and game planning were major keys silva had to improve on.
His training vids show him boxing under water and he looks to be improving cardio and actually using his jiu jitsu black belt to better use as shown in his last 2 outings.
Silva's still the rightful favorite a dangerous striker with deadly submissions, he could quite easily lock in a choke on a 4 day camp magny so I would not jump on the magny wagon off the bat.
Maybe magny live betting beyond r1 and decision props or as few are on r2,r3 magny props.