KTAR News reported the news, noting he was allegedly driving 105 mph but was not impaired.
KTAR News noted Arizona law says drivers can be arrested if they travel faster than 85 mph on any road. Drivers can have their license suspended for the reckless driving or criminal speeding charge, but the latter brings a maximum sentence of up to 30 days in jail and a $500 fine.
"We are very disappointed to learn of this news," a Diamondbacks spokesperson said, per KTAR News. "We are still gathering facts, and will refrain from further comment at this time as this is a pending legal matter."
On the field, Tomas impressed in 2016 and slashed .272/.313/.508 with 31 home runs and 83 RBI. However, he struggled with a core injury in 2017 and played just 47 games, slashing .241/.294/.464 with eight home runs and 32 RBI.