From a HRU article
"Dec 18, 2020 · Just like many other trainers, DiDomenico has a go-to driver at different tracks. At Yonkers his first call is Brennan, while at the Meadowlands it’s Tim Tetrick, but since Tetrick isn’t planning to race at The Big M during the winter, Brennan will get the call.
That explains Tetrick but how about that Di Domenico has no one in at M last week or this week. Is he serving his sentence for his recent positives? I thought he appealed.