Scottish brothers Callum and Derek Hawkins are among the five-strong Great Britain marathon squad for this summers Rio Olympics. Bill Almon Jersey . UK Athletics and the British Olympic Association announced the squad on Tuesday, two days on from the Virgin London Marathon.Sundays event saw Callum Hawkins and Tsegai Tewelde - the first and second Britons across the line respectively in the mens marathon, who both ran under the required time for Rio - qualify automatically. Derek Hawkins, the elder of the two siblings, joins them having been selected after he was the third British man to finish on Sunday, also hitting the Olympic standard.Alongside the trio, Alyson Dixon and Sonia Samuels also made it into the squad. Both had already run the qualifying time in Berlin last September, and Dixon sealed her spot as the first Briton home in the womens marathon on Sunday, while Samuels booked her place as the second.It was also announced on Tuesday that 50 kilometre race walker Dominic King had been selected to represent Great Britain in Rio for what will be his second Olympics. Team GB will be represented in this summers Olympic marathon by Tsegai Tewelde, who has only completed the distance once in a competitive race They are the first six members of the athletics squad for Rio, with the rest of the team to be announced in the coming months.Callum Hawkins, 23, who came eighth overall on Sunday, with Tewelde 12th and Derek Hawkins 14th, said: The aim was to finish top two in the London Marathon so I am really happy.Rio was my main goal in the race and I didnt care about the time so Im delighted with my position and securing selection.Dixon said: It feels like a dream come true and hasnt really sunk in. Going to the Olympics is something I have dreamed of for 20 years.The 37-year-old came 13th on Sunday, one place ahead of Samuels.The selected athletes are:Callum Hawkins, 23, Kilbarchan Athletics ClubDerek Hawkins, 26, Leeds City/Kilbarchan Athletics ClubTsegai Tewelde, 26, Shettleston HarriersAlyson Dixon, 37, Sunderland StrollersSonia Samuels, 36, Sale HarriersDominic King (50km Race Walk), 32, Colchester Harriers Also See: Team GB Ronald Bolanos Jersey . Mission accomplished. Now the Royals will take the field on Saturday with a World Series lead for the first time in team history when they play Game 4 of the Fall Classic against the Giants at AT&T Park. Jake Peavy Jersey . At this point, even he isnt sure when it is going to stop. The right-hander dropped his fourth straight decision in Los Angeles 6-1 loss to the Pittsburgh Pirates on Wednesday night, leaving his status very much in doubt as the Dodgers prepare for the stretch drive.Nico Rosberg set the pace in Practice Two for Mercedes, but Ferraris Kimi Raikkonen was in close proximity at the top of the times. The gap between the pair was just 0.254 seconds, a significant reduction of four tenths from the gap between the two teams in the corresponding session at the previous race in Russia. Raikkonens time was posted on used soft tyres, further underlining the pace the Finn demonstrated. I dont get the feeling that Mercedes looks anywhere as dominant as it normally does when I am out here on a Friday, said Sky Sports F1s Martin Brundle from trackside. In the sister cars neither Lewis Hamilton nor Sebastian Vettel managed clean flying laps due to a mixture of traffic and driving errors. The world champion was third quickest, seven tenths down on Rosberg, with the Ferrari driver fourth, a further four tenths back. It is definitely tighter in Barcelona because of all the testing the teams know the set up, said Mercedes boss Toto Wolff. But it is tricky, you could see that Lewis wasnt really happy with his car, so we havent found the sweet spot yet.On home soil Carlos Sainz was a remarkable fifth for Toro Rosso as he once again demonstrated his pace. The Spaniard may have seen his former team-mate Max Verstappen promoted to the senior team ahead of this weekend, but emerged top of all four Red Bull backed drivers in the session. Sainz was a massive 1.2 seconds quicker than Daniil Kvyat in the sister Toro Rosso. Who has the best line-up? Vote on whether Mercedes, Ferrari, Red Bull or McLaren have the driver best line-up Daniel Ricciardo was sixth, two tenths ahead of Verstappen, with the new team-mates split by Fernando Alonso in a heavily revised McLarenn. Andrew Cashner Jersey. The Woking team have new front and rear wings in Barcelona, as well as brake duct and floor changes on the MP4-31. Renault too have a host of updates in Spain, but their struggles continued as Jolyon Palmer lost most of the session following an early puncture.Whats new on the carsThe left rear on his car blew up on the pit-straight causing a red flag as well as substantial damage to the floor. The Briton did manage some further laps late in the session, but will go into Saturday on the back foot after missing Practice One where he was replaced by reserve driver Esteban Ocon. Every race live in 2016 Sky Sports F1 brings you every race live in 2016. Fast and easy online upgrade - click here. Practice Two timesheet1. Nico Rosberg, Mercedes, 1:23.9222. Kimi Raikkonen, Ferrari, +0.2543. Lewis Hamilton, Mercedes, +0.7194. Sebastian Vettel, Ferrari, +1.0955. Carlos Sainz, Toro Rosso, +1.2096. Daniel Ricciardo, Red Bull, +1.2727. Fernando Alonso, McLaren, +1.4208. Max Verstappen, Red Bull, +1.4539. Sergio Perez, Force India, +1.51510. Nico Hulkenberg, Force India, +1.53111. Valtteri Bottas, Williams, +1.78612. Jenson Button, McLaren, +1.97113. Romain Grosjean, Haas, +1.97714. Kevin Magnussen, Renault, +2.32215. Daniil Kvyat, Toro Rosso, +2.45316. Felipe Massa, Williams, +2.56917. Jolyon Palmer, Renault, +2.84818. Pascal Wehrlein, Manor, +3.03819. Rio Haryanto, Manor, +3.33020. Felipe Nasr, Sauber, +3.89021. Esteban Gutierrez, Haas, +4.28322. Marcus Ericsson, Sauber, +4.579 Also See: P1 report: Ferrari finish one-two When is the Spanish GP on Sky? ' ' '