THIS WEEK'S EVENTS
Badminton: The world's top players will be in action at the Malaysia Open, one of this season's five World Superseries Premier events. Mixed doubles pair Chris and Gabby Adcock head the British challenge.
Boxing: Great Britain will be hoping to qualify their first boxers for Rio at the European Olympics Qualifier in Samsun, Turkey (7-18 April). Nicola Adams, Chantelle Cameron and Savannah Marshall compete in the women's tournament, with Galal Yafai, Muhammad Ali, Qais Ashfaq, Joe Cordina, Pat McCormack, Cyrus Pattinson, Antony Fowler, Joshua Buatsi, Lawrence Okolie and Joe Joyce in the men's competition.
Cycling - BMX: The second round of this year's BMX World Cup series returns to Manchester's National Cycling Centre this weekend, with Britain's former world champion Liam Phillips going for his fourth consecutive victory at the event.
Cycling - road: One of cycling's most iconic one-day road races, Paris-Roubaix, is on 10 April. Ian Stannard and Luke Rowe - eighth last year - will lead British hopes.
Gymnastics: The British Championships take place in Liverpool this weekend, with the likes of world champion Max Whitlock, Olympic silver medallist Louis Smith and four-time Commonwealth champion Claudia Fragapane set to compete. As well as battling it out to be crowned the best in Britain, they will also be looking to prove to selectors they deserve a place at May's European Championships, and this summer's Olympics.
Handball: The final six men's Olympic spots will be decided at three tournaments in Poland, Sweden and Denmark (8-10 April).
Rugby Sevens: Both the men's and women's World Series return this weekend. Round three of the women's tournament takes place in Atlanta, USA (8-9 April) with Australia looking for a third consecutive victory this season. The men head to Hong Kong (8-10 April) with Fiji, strong contenders to win their country's first ever Olympic medal in Rio, holding a slender lead in the overall standings.
Triathlon: The second round of the World Series in Australia (9-10 April) is doubling up as a British trial to decide the final men's and women's spots for Rio 2016. The women's race is the most intriguing, with Commonwealth champion Jodie Stimpson going head to head with former world champion Helen Jenkins. With the Olympic gold and bronze medallists from London 2012, Alistair Brownlee and brother Jonny, already selected, European Games champion Gordon Benson and Tom Bishop will attempt to secure the right to join them.
Water polo: The final four men's Olympic spots will be decided at a qualification tournament in Italy from 3-10 April.
Weightlifting: The Olympic test event (the South American Championships) takes place in Rio.
ARMITSTEAD NOTCHES UP ANOTHER WIN
Cycling - road: Britain's world road race champion Lizzie Armitstead won the Tour of Flanders, her fourth victory of the season.
The Yorkshire cyclist pipped Sweden's Emma Johansson in a photo finish to win the 141km race, and take the lead in the WorldTour standings.
The men's event was also won by the world champion, with Slovakian Peter Sagan coming home clear of Switzerland's two-time Olympic medallist Fabian Cancellara.
Luke Rowe was the top British finisher in fifth, with fellow Welshman Geraint Thomas 12th.
FOX-PITT BACK IN THE SADDLE
Equestrian: Former world number one eventer William Fox-Pitt made his comeback at Burnham Market from a serious head injury.
The 47-year-old said it was "a happy day - and a huge relief to have finished in one piece and feeling good" after completing clear clear cross-country rounds on Cool Mountain and Parklane Hawk, finishing 22nd and 24th respectively.
Fox-Pitt decided against riding Olympic contender Chilli Morning at the event in Norfolk.
ADCOCKS SUFFER SURPRISE DEFEAT
Badminton: Chris and Gabby Adcock were beaten in the first round of the India Open, the first leg of a three-week Asian tour in which they are trying to push for an Olympic seeding.
The fourth seeds lost 11-21 21-17 21-13 to the unheralded Chinese pair Wang Yilyu and Chen Qingchen.
Rajiv Ouseph and Kirsty Gilmour, Britain's top-ranked singles players, also suffered first-round exits in Delhi.
But Heather Olver and Lauren Smith secured valuable Olympic qualification points by winning the women's doubles at a lower-ranked event in Orleans, France.
SCOTT HAS TO SETTLE FOR SILVER
Sailing: Giles Scott, one of Great Britain's strongest hopes for Rio gold, suffered his first defeat in the Finn for three years when he finished second at the Princess Sofia Trophy in Mallorca.
A broken rudder cost the world champion, who nevertheless managed to battle back in the later races to take silver behind New Zealand's Josh Junior.
Luke Patience, who is trying to re-qualify for Rio with new partner Chris Grube as Elliot Willis is having cancer treatment, finished fourth in the 470 division.
Football: Colombia claimed the final men's football spot at the Olympics in Rio by beating the USA 2-1 in Dallas to secure a 3-2 victory on aggregate in the intercontinental play-off.
Gymnastics - trampoline: Kat Driscoll and Nathan Bailey won bronze in the individual events at the European Trampoline Championships in Valladolid, Spain.
Modern pentathlon: Britain's Joe Choong finished a career-best fourth at the third World Cup of the season in Rome. But Samantha Murray's disappointing start to the season continued as she failed to reach the final. Kate French, the only female British finalist, finished 11th.
Politics: Brazil's sports minister resigned just months before the Olympics.
Swimming: French swimmer Yannick Agnel may yet get the chance to defend his 200m freestyle Olympic title despite a timing controversy that ruled him out of contention at his country's national championships in Montpellier. The French swimming federation said its regulations would allow him the chance to meet the qualifying criteria before the Olympics.
Table tennis: British number one Liam Pitchford rose to a career-high world ranking of 39.
Tennis: Britain's Jo Konta moved to the brink of the world's top 20 as she reached a career-high ranking of 21.
Triathlon: American world champion Gwen Jorgensen began her season in fine style with victory in the sprint format World Cup event in New Zealand. In second place was Kiwi Andrea Hewitt, who was competing for the first time since the sudden death of her fiance, fellow triathlete Laurent Vidal, last year.
Weightlifting: Double world champion and two-time Olympic silver medallist Andrei Rybakov of Belarus was provisionally suspended after testing positive for meldonium.