So, they'll wait -- and hold out hope.
Aybar is still listed as day to day and will be re-evaluated on Wednesday, with the club waiting on team doctor Lewis Yocum to read the results and determine whether the shortstop needs to go on their disabled list.
"If he can improve enough, hopefully we can avoid the disabled list, but he's still sore," Angels manager Mike Scioscia said prior to Monday's series opener against the Royals.
"Right now, we've got infield coverage and the day off Thursday. Pitching looks like it's hopefully still fresh to get us through the off-day. The big thing is not how much we can wait, but what is a reasonable amount of time for Erick. Is this going to take two days or two weeks? That's what we're trying to work through right now."
In the meantime, the Angels have Maicer Izturis to start at shortstop and have called up top prospect Jean Segura, who can play both middle-infield positions and provide depth.
Aybar, in a walking boot Monday, hurt the toe on a foul ball during Saturday's game against the Rangers and Yu Darvish. Signed to a four-year extension in April, Aybar got off to a really slow start and, despite picking it up a little recently, is batting .257 with a .296 on-base percentage on the year.
If Aybar is placed on the DL, the Angels would probably call up another reliever.