John Torode and Gregg Wallace return for a 9th series of the enormously popular MasterChef tonight. There are five chefs in the kitchen for an Invention Test this eve, and they've each got an hour to come up with a truly exceptional dish. Only three can make it through to round two, and fight for survival during lunchtime service at London's Chelsea Riverside Brasserie, before coming back to the kitchen to serve up a two course meal. There's not a hope they'll get through without doing it properly. No pressure.