HOUSTON >> Soon after Lance McCullers Jr.’s family received online death threats following a tough start by the Houston Astros’ pitcher, his 5-year-old daughter, Ava, overheard wife Kara talking on the phone about it.

What followed was a painful conversation between McCullers and his little girl.

“She asked me when I came home: ‘Daddy like what is threats? Who wants to hurt us? Who wants to hurt me?’” McCullers told The Associated Press on Wednesday. “So, those conversations are tough to deal with.”

McCullers is one of two MLB pitchers whose families have received online death threats this month as internet abuse of players and their families is on the rise. Boston reliever Liam Hendriks took to social media soon after the incident with McCullers to call out people who were threatening his wife’s life and directing “vile” comments at him.

The Astros contacted MLB security and the Houston Police Department following the threats to McCullers. A police spokesperson said Thursday that it remains an ongoing investigation.

McCullers, who has two young daughters, took immediate action after the threats and reached out to the team to inquire about what could be done to protect his family. Astros owner Jim Crane stepped in and hired 24-hour security.

It was a move McCullers felt was necessary after what happened.

“You have to at that point,” he said.

Players from around the league agree that online abuse has gotten progressively worse in recent years. Milwaukee’s Christian Yelich, a 13-year MLB veteran and the 2018 NL MVP, said receiving online abuse is “a nightly thing” for most players.

“I think over the last few years it’s definitely increased,” he said. “It’s increased to the point that you’re just: ‘All right, here we go.’ It doesn’t even really register on your radar anymore. I don’t know if that’s a good or a bad thing. You’re just so used to that on a day-to-day, night-to-night basis. It’s not just me.”

And many players believe it’s directly linked to the rise in legalized sports betting.

“You get a lot of DMs or stuff like that about you ruining someone’s bet or something ridiculous like that,” Red Sox reliever Justin Wilson said. “I guess they should make better bets.”

Hendriks, a 36-year-old reliever who previously battled non-Hodgkin lymphoma, said on Instagram that he and his wife received death threats after a loss to the Mets. He added that people left comments saying that they wished he would have died from cancer among other abusive comments.

He later discussed the issue and his decision to speak out about it.

“Enough is enough,” he said. “At some point, everyone just like sucking up and dealing with it isn’t accomplishing anything. And we pass along to security. We pass along to whoever we need to, but nothing ends up happening. And it happens again the next night. And so, at some point, someone has to make a stand.

“... It’s one of those things where the more eyes we get on it, the more voices we get talking about it. Hopefully it can push it in the right direction.”