Valtteri Bottas says Williams has a big challenge on its hands if the team is going to beat Force India at this weekends United States Grand Prix.The Finn was sixth quickest and just 0.1s behind Nico Hulkenberg in the opening practice session, before Bottas and Williams teammate Felipe Massa fell outside the top 10 in the afternoon, over half a second slower than both Force India drivers.Force India definitively seems very competitive here, Bottas said. Its going to be a big challenge for us if we want to compete with them -- thats how it feels at the moment, but theres still a long weekend to go.Williams currently trails Force India by 10 points in the battle over fourth place in the constructors standings, and while the Grove-based team rarely shows its true pace on Fridays, Bottas conceded that Williams encountered balance issues in both sessions at the Circuit of the Americas.In the morning, with the soft compound, it was the best it was all day, by far, but in the afternoon the in-corner balance was not quite together, some entry issues, some snap oversteer in mid-corner and then understeer so we have some work to do.In the afternoon, as soon as we went out, we started to struggle with the balance of the car. I dont know, its difficult to say much because the wind direction is going to change completely for tomorrow so whatever we were doing today, things will be different tomorrow.A number of drivers struggled to stay on circuit in both sessions in Austin, including the likes of Renaults Jolyon Palmer who spun twice, and Toro Rossos Carlos Sainz, who ended FP2 going backwards in the gravel in the twisty first sector.When asked if track conditions were particularly difficult on Friday, Bottas replied: I think today was tricky with the wind. The first sector was good with the headwind but there was quite a bit of gusty tailwind and it was a bit of a problem.He added: But tomorrow its going to be different, the wind direction will change 180 degrees, so it will make a difference in terms of balance and how the car feels, so whatever we do with the set-up it will be tricky tomorrow. Cheap Phoenix Suns Jerseys China . -- Matt Ryan needed one of the best games of his career to lead the Falcons and their depleted offence out of their three-game losing streak last week. Basketball Jerseys On Sale . With their top three point guards and Kobe Bryant all sidelined by injury, the Lakers signed Marshall out of the D-League on Friday before their home game against Minnesota. http://www.cheapbasketballchina.com/cheap-indiana-pacers-jerseys-china_344r.html . Three came down to the fourth quarter while quarterbacks continued to shine in all four games; so important to the overall quality of the game. Cheap Dallas Mavericks Jerseys China .B. - Sebastien Auger made 44 saves as the Saint John Sea Dogs edged the visiting Acadie-Bathurst Titan 2-1 on Saturday in Quebec Major Junior Hockey League action. Cheap Charlotte Hornets Jerseys China . The Browns coaching search remains incomplete. Before a workout or tournament starts, two-time Olympic judo champion Kayla Harrison has a playlist that includes John Mayer and George Strait, among others -- a mix with chill, relaxing music, she says. But then once I start my warm-up, its all Eminem.First up is Sing for the Moment because its about five minutes, the perfect length for a short jog. Then its Lose Yourself, Cleanin Out My Closet, Til I Collapse. ... It goes on, she says with a laugh.Harrison just announced that shell be transitioning to mixed martial arts over the next year, meaning she will also be following the lead of UFC superstar Ronda Rousey, the 2008 Olympic bronze medalist in judo.dddddddddddd. (Former training partner Rousey helped give Harrison her nickname early on in their respective careers, too.)While Harrison trains for her MMA debut, she will keep on blasting Eminem -- and this chill playlist as well: Get more athlete playlists. ' ' '