David's films for Sainsbury's, directed by Tubby Brothers...

David's films for Sainsbury's, directed by Tubby Brothers, take a look at two particular athletes in this year's Paralympic Games.

Here we have Ellie Simmonds, gold medal winning British swimmer, who defends her title later this week in the 100 & 400m S6 freestyle.

Click here to watch the film on Jonnie Peacock, who successfully defended his T44 100m title last week.

Sainsbury's is one of the official partners of this year's Paralympic Games, held in Rio.