Josh Hart's biggest assist of the year may have come after the NBA regular season ended. 

The Los Angeles Lakers shooting guard lent his phone to This Is Us star Sterling K. Brown so Brown could recover his phone before boarding a plane. TMZ Sports caught video of the interaction between Hart and Brown:

Brown explained to TMZ that he had left his phone in his car before heading into the airport terminal. He then used Hart's phone to contact his wife so he could get the phone before his flight. 

Brown returned Hart's phone, averting a travel nightmare.