MOBILE, Ala. — There are times when Kyzir White wants to fire back on Twitter and defend those who trash his older brother, Bears receiver Kevin White.

‘‘I know a lot of people got a lot of bad stuff to say,’’ Kyzir said Tuesday at the Senior Bowl. ‘‘But when he turns it around, you’ll see. They’ll see for sure.’’

Kevin has played in only five games in three seasons since the Bears made him the No. 7 overall pick in 2015.

‘‘Very frustrating,’’ said Kyzir, who played a hybrid safety-linebacker spot at West Virginia, his brother’s alma mater. ‘‘He’s very talented. Hardest worker I know. Just the cards he’s being dealt right now aren’t the best. He just has to stick it out.’’

Kyzir has watched his brother’s rehab from a broken shoulder up close. Along with his other brother, Ka’Raun, a former wide receiver at West Virginia, they

are training together outside Phoenix.

‘‘It gives me a lot of inspiration, a lot of motivation,’’ Kyzir said.

Kevin tried to prepare Kyzir for the Senior Bowl, but it wasn’t until after the repetitious team interviews Monday that Kyzir finally understood. He picked up the phone and called Kevin.

‘‘I definitely know what he was going through,’’ Kyzir said.

Kyzir looked sharp in practice Tuesday, notching an interception. He is likely three months away from joining Kevin in the NFL.

Still, he can’t help but stick up for Kevin.

‘‘It’s definitely difficult for me,’’ Kyzir said. ‘‘If I see anything on Twitter, I kind of want to respond, but I don’t. . . . I don’t like people talking bad about him. I know what he brings to the table.’’

‘Fresh start’ for new Bears aide

New Bears running backs coach Charles London wanted a ‘‘fresh start,’’ Texans coach — and old boss — Bill O’Brien said.

London was O’Brien’s running backs coach and recruiting coordinator at Penn State in 2012-13 before following him to the Texans as an offensive assistant.

‘‘He felt like he wanted to have a fresh start,’’ O’Brien said. ‘‘He and I had been together for a long time. I have a great deal of respect for Charles. . . .

‘‘Smart guy, hard worker, communicator. A guy that really puts the time in, wants to learn, wants to be kind of like a sponge that learns a new system.’’

This and that

A league source told the Sun-Times that Bears head athletic trainer Nate Breske won’t return next season. Breske’s departure follows that of strength and conditioning coach Jason George, who was informed last week that he wouldn’t return.

The Bears put 16 players on injured reserve last season. In 2016, they had 21 players on IR.

• Oklahoma quarterback and Heisman Trophy winner Baker Mayfield arrived a day late because his mom was in the hospital. He will practice but might not play Saturday.

‘‘We’ll see,’’ Mayfield said. ‘‘I’ll address that later.’’

• Oregon long snapper Tanner Carew said the Bears will respect new offensive coordinator Mark Helfrich, his coach for three years with the Ducks.

‘‘Doesn’t get any better than coach Hel,’’ Carew said. ‘‘I love coach Hel. My favorite part about him is that he’s as advertised. The person that recruited you is what you got as a coach.’’

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Email: pfinley@suntimes.com