A Japanese company has started exporting what it calls sustainably grown bluefin tuna, which it says allows sushi lovers to keep eating the species without driving down ocean stocks. Bluefin tuna is either caught in the open seas or farmed from the baby fish caught in the nets, but marine products company Burimy says it is the first to sell bluefin grown from artificially hatched eggs.

Boston Red Sox pitcher Daisuke Matsuzaka worked out briefly on Sunday but said it will be at least another day before the Major League Baseball hurler from Japan is ready to throw again. Matsuzaka was dropped from throwing a scheduled batting practice session on Saturday because of a stiff neck. He played catch for about 10 minutes on Sunday from about the same distance as a mound to home plate.

Brazilian midfielder Ponte's early goal Sunday gave Urawa Red Diamonds their first win of the J-League season, beating FC Tokyo 1-0. Midfielder Tomoya Ugajin was brought down in the area, giving Urawa a penalty chance netted by Ponte in the 19th minute. In the 39th minute, Tokyo were reduced to 10 men and were never able to regain the initiative.

Boston Red Sox pitcher Daisuke Matsuzaka was unable to throw a batting practice session on Saturday as planned because of a stiff neck, managing only five tosses in the bullpen. The Japanese right-hander's inability to take the mound calls into question whether or not he can be fit for next month's start of the Major League Baseball season.

J-League final standings after Sunday's games (played, won, drawn, lost, goals for, goals against, points):Vegalta Sendai 2 2 0 0 4 1 6Kawasaki Frontale 2 2 0 0 5 3 6Shimizu S-Pulse 2 1 1 0 4 1 4Kashima Antlers 2 1 1

Results from Japan's J-League on Sunday:Kyoto Sanga 1 (Diego 89) Kashima Antlers 1 (Nozawa 63)Urawa Red Diamonds 1 (Ponte 19-pen) FC Tokyo 0Cerezo Osaka 1 (Adriano 71) Gamba Osaka 1 (Myojin 65)Vissel Kobe 1 (Okubo 69-pen) Sanfrecce Hiroshima 2 (Nakajima 21, Takahagi 53)On SaturdayYokohama Marinos 3

A strong, 6. 6 magnitude earthquake hit northern Japan Sunday afternoon, said the Japanese government, which did not issue a tsunami warning. The quake happened at 5:08 pm (0808 GMT) off the Pacific coast of Fukushima prefecture, the Japanese Meteorological Agency said. "It is possible that the tidal level would change slightly.

Japan's Yuri Kano won the Nagoya International Women's Marathon Sunday and then set her sights on the world's top races including the 2012 London Olympics. Kano crossed the line in 2hrs 27min 11sec ahead of Derartu Tulu of Ethiopia, who clocked 2:28:13, and compatriot Hiromi Ominami in 2:28:35. Japan's Mai Ito was fourth in 2:29:19.

Results from the Nagoya International Women's Marathon here on Sunday:1. Yuri Kano (JPN) 2hr 27min 11sec2. Derartu Tulu (ETH) 2:28:133. Hiromi Ominami (JPN) 2:28:354. Mai Ito (JPN) 2:29:195. Mayumi Fujita (JPN) 2:29:366. Akane Wakita (JPN) 2:29:547.

A moderate 5. 8-magnitude earthquake struck off the east coast of the Japanese island of Honshu early Saturday, seismologists said, but there were no immediate reports of casualties or damage. The tremor hit at 02:32 am (1732 GMT Friday) with an epicentre 192 kilometres (119 miles) east-southeast of Tokyo at a relatively shallow depth of 18 kilometres, the US Geological Survey said.