We aren't sure if Yu Darvish and Stephen Piscotty have developed a friendship over the last few years, but the Cubs pitcher did something really nice for the A's outfielder on Monday.

Hours after it was learned that Piscotty's mom Gretchen passed away following a yearlong battle with ALS, Darvish made a $10,000 donation to the YouCaring fund started by Piscotty and the A's. All funds go towards the ALS Therapy Development Institute.

The goal of the fund is to raise $100,000. As of 3:18pm PDT, with Darvish's donation, they have raised $25,758.

On Twitter, a Cardinals fan sent a shoutout to Darvish for making the donation.

"We are all family," Darvish responded.