ESPNF1 In Focus

June 13, 2013: Pirelli has blamed a lack of support from the teams for its inability to implement a new tyre construction ahead of the British Grand Prix

June 10, 2013: Pirelli will not race its new rear tyres at the British Grand Prix as planned after wet weather on Friday in Canada limited the teams' testing mileage on the new construction

June 7, 2013: After consulting his company's lawyers, Pirelli motorsport boss Paul Hembery pulled out of Friday's FIA press conference at the Canadian Grand Prix as pressure mounts on the Italian tyre company ahead of its appearance at the FIA's International Tribunal

June 6, 2013: Sebastian Vettel has criticised the resistance against introducing a new structure of tyre at the Canadian Grand Prix, arguing it should have been changed on safety grounds

June 1, 2013: Pirelli expect to complete more tests similar to the one it took part in with Mercedes after the Spanish Grand Prix

May 31, 2013: Pirelli said it chose Mercedes to complete its 2014 tyre test because it was the first team to offer availability

May 31, 2013: Pirelli has defended its private test with Mercedes at the Circuit de Catalunya earlier this month, claiming it did not benefit Mercedes and was focused on 2014 tyre compounds only

May 29, 2013: Pirelli will not race with its revised rear tyres at the Canadian Grand Prix, opting to give the teams a chance to use them in Friday practice before a planned full introduction at the British Grand Prix

May 26, 2013: It has emerged in Monaco that Mercedes took part in a 1000km private test at the request of Pirelli after the Spanish Grand Prix, leading its rivals to argue it has gained an unfair advantage

May 24, 2013: Pirelli has warned it could withdraw from Formula One at the end of the season

May 23, 2013: Pirelli says it is close to agreeing on changes to the tyres for the Canadian Grand Prix after facing opposition from some teams over its original proposal

May 21, 2013: Pirelli is targeting a two-stop race in Monaco in an attempt to open strategic options on the street circuit

May 14, 2013: Pirelli's motorsport director Paul Hembery has called for more testing in warmer climates as he explains the reasoning behind the tyre compound changes

May 14, 2013: Paul Hembery says Pirelli is willing to make wholesale changes to the tyre compounds and structure if required to deliver two or three stop races

May 12, 2013: Pirelli is going to change the tyre compounds in time for the British Grand Prix after admitting that four pit stops in Barcelona were too many

May 6, 2013: Pirelli will bring an extra set of tyres to the Spanish Grand Prix for use in first practice but their use will not be limited to rookie drivers as originally planned

April 25, 2013: Pirelli has made changes to its hard compound tyre ahead of the upcoming races to bring it closer to the 2012-spec hard tyre used last season

April 19, 2013: Formula One teams are at odds about how to introduce an extra set of tyres to Friday morning practice sessions

April 16, 2013: Pirelli has changed its compound choices for the Bahrain Grand Prix, switching the soft compound for medium ahead of next weekend's race