Nicasio's gave up zero earned runs in his previous 10 outings.
https://www.thegoodphight.com/2019/5/21/18635104/your-closer-juan-nicasio-cubs-3-phillies-2
To be fair, this was a tough spot for Nicasio. He was never intended to be more than a back-of-the-bullpen option, but with Hector Neris, Adam Morgan, Seranthony Dominguez, and Pat Neshek (he must have really tired himself out warming up on Monday) all apparently unavailable, he was the only option left.