Tonight is the final of MasterChef: The Professionals 2017. MasterChef presenter Gregg Wallace and two of Britain's leading chefs, Michelin-starred chef Marcus Wareing and Monica Galetti are edging closer to finding the 2017 champion. Just one almighty cook off remains for them to assess the talent of the finalists.

In the penultimate challenge, the four remaining chefs fight to secure their place amongst the final three. First, they must face a cook-off against each other in the MasterChef kitchen. For one chef, this will be the end of the competition, as only three can take the next step - being sent to the south of France to learn in the two Michelin-starred kitchens of the 4th best restaurant in the world, Mirazur.

It is finals week and the first challenge the four chefs face is the chance to cook at one of the most prestigious events in the UK culinary calendar - The Chef's Table. It allows the finalists to showcase their food to their professional heroes as 23 culinary giants descend on London for this unique annual event.

It is the last semi-final, and three of the remaining chefs are in close competition for a place in finals week. They are sent to cook at one of the UK's most famous restaurants, home of renowned chef Raymond Blanc OBE, where they meet long-serving executive head chef Gary Jones. Gary shows the professionals how to make his own unique lobster dish, before letting them explore the restaurant's two-acre gardens to collect fresh produce with which to create their own personalised version of Gary's dish. The three chefs are then made responsible for one of Le Manoir's dishes during a packed lunchtime service, in a bid to prove they have what it take to work as chefs at the very highest level. Finally, the chefs return to the MasterChef kitchen to cook against each other, creating a two-course menu to be judged by Monica, Marcus and Gregg.

Semi-finals week continues as Gregg Wallace, Monica Galetti and Marcus Wareing search for this year's MasterChef: The Professionals champion. The first three semi-finalists are sent to work alongside former professional golfer and self-taught chef James Close, whose County Durham restaurant was the only new restaurant in the UK to be awarded two Michelin stars in 2017. The chefs' first challenge is to each take responsibility for one dish from the tasting menu, delivering complex two-star standard dishes during a packed lunchtime service. James then sets the chefs the task of recreating one of his signature dishes - a seasonal salad of up to 50 ingredients. Finally, the inspired chefs return to the MasterChef kitchen, where they face the challenge of cooking their own dishes for a two-course menu which Marcus, Monica and Gregg will taste.

The first challenge faced by the eight chefs is cooking against each other to create a dish dedicated to someone who has inspired them in life. In just one hour and 45 minutes they must deliver a perfect plate of food that showcases their personality and style, and sets them apart from the other chefs, with the judges deciding who makes it through to the next round. The remaining chefs then face an invention test, which sees them each tasked with creating their own unique dish which celebrates the fresh and light ingredients on offer - and this time, there's no meat or fish for them to choose from. After this hard-fought battle, two chefs are asked to leave the competition.

The second group of five chefs face two intense challenges. The chefs must cook together for the first time as a team to create an exceptional three-course fine-dining menu at one of London's most prestigious addresses, The Institution of Civil Engineering, to celebrate the organisation's bicentenary. Will their creative vision and talent shine through? Or will team playing prove to be their weakness?

For the first time, the professionals must show they can work together as a team to create a three-course fine-dining menu for special guests at the home of rugby - Twickenham.

After four weeks of intense competition, 12 most talented chefs from the initial 48 face knockout week. Tonight is the first time they all come together in the MasterChef kitchen, where their fate rests in an almighty cook-off.

In the last of the quarter-finals, the best chefs from the week's heats come together in the kitchen to cook against each other and continue in their quest for the title. First, is the daunting invention test. From an array of sweet and savoury ingredients, the chefs are tasked with creating one incredible dish with either herbs, citrus or spices as the core central theme. Will they remember to allow their chosen hero ingredients to shine through their dish? At the end of this challenge, two chefs will be chosen to leave the competition. The remaining four chefs now face one of the toughest rounds of the competition. In an hour and 15 minutes, they must serve up an exceptional two-course menu to three of the country's most notable restaurant critics.

The search for the country's 2017 culinary superstar continues. It's the last week of the heats and these are the last six chefs to battle to make it through the competition.

The search for the country's 2017 culinary superstar continues. It's the final heats week, as six new chefs set out to prove they have what it takes to win the coveted title.

The quarter-final chefs are challenged to create something special from a table of citrus, herbs and spices, with only the four most impressive going through the next round. This sees them given 75 minutes to cook a main course and a dessert for restaurant critics William Sitwell, Tracey MacLeod and Jay Rayner. However, judges Marcus Wareing and Monica Galetti will be the ones to decide who wins a place in knockout week.

The latest heat begins with the six chefs having to prepare and cook a pigeon crown and an accompanying sauce in just 20 minutes, in a Skills Test set by Monica Galetti. The chefs then have the chance to showcase their own cooking style with a Signature Dish, with only three of them set to progress to the quarter-finals.

The search for the country's 2017 culinary superstar continues. Monica challenges the chefs to create a unique sweet or savoury dish using fresh herbs.

The search for the country's 2017 culinary superstar continues. Marcus sets the six chefs the task of preparing and cooking a fresh pasta dish with tiger prawns.

The search for the country's 2017 culinary superstar continues. Six chefs face a skills test, set by Monica. They have 20 minutes to prepare a dish using cod cheeks.

The six strongest chefs from the heats compete in the first quarter-final, beginning with an invention test to create a unique dish using spices. After this, two hopefuls get sent home, leaving the others to cook a two-course dinner for three critics - William Sitwell, Jay Rayner and Grace Dent. However, judges Marcus Wareing and Monica Galetti will ultimately decide who deserves a place in the next round.

The chefs have to create a perfect fruit-based soufflé with a garnish of their choice in the Skills Test set by Monica Galetti, demonstrating their working methods and techniques. The Signature Dish follows, after which Monica, Marcus Wareing and Gregg Wallace have to decide which three stay, and which three have their hopes ended.

The first six chefs compete, and tests include making a duck dish in 20 minutes flat. Next, the contestants have a chance to redeem any earlier mistakes when they cook their own signature dish for judges Monica Galetti, Gregg Wallace and Marcus Wareing. In 75 minutes, they must showcase their creativity, palate and personal style. It is also their final chance to show off their culinary talent before the judges decide which three are sent home, and which three go through to this week's quarter final.