Casilla will be late to camp due to a visa issue, Susan Slusser of the San Francisco Chronicle reports.

EDGE Analysis

This isn't much of a surprise, as Casilla was a late signing for the A's. He'll likely be at camp by the end of the week. The 36-year-old posted a 3.57 ERA with a 10.1 K/9 and 3.0 BB/9 ratios across 58.0 innings last year with the Giants.