[Enchante]

Wow that really was nuts. Ofc Segura never should have headed back to 1st base, what was he thinking?? Very entertaining....

[Alberta's Child]

He didn't actually intend to head back to first. He thought he was out and was trotting back to the dugout when the first base coach told him to stand on first just to see how the play was called.

The umpire correctly called the other (trailing) runner out for being on the same base as the runner in front of him, but with two guys on the same base at the end of the play they were confused about which one was out.