Jeff Nelson Officiates a Back-Tag in the Middle Infield

On a first-and-third base hit to left field, Blue Jays runner R1 Santiago Espinal rounded second base in anticipation of a throw to the plate on the lead runner—a throw that instead was cut off and found its way to second base as Espinal dove back. 2B Umpire Jeff Nelson, reading the cutoff sequence, gradually drifted along the first base side of second, anticipating a potential play on the trailing R1 Espinal.

This call would stand via Replay Review as the result of an Orioles challenge, but no camera had a better angle than 2B Umpire Nelson, who worked throughout the play to gain a position and keyhole angle with which to see a potential back-tag situation, which is precisely what ended up happening.

Video as follows:

Alternate Link: U2 Nelson drifts behind second base to find optimal angle for backpick (CCS)