World No 1 Jordan Spieth fired the worst first-round score of his professional career to fall 16 strokes off the pace at the Northern Trust Open. Spieth struggled to an eight-over 79 in scoring friendly conditions on Thursday, as Camilo Villegas fired a birdie-filled 63 to surge up the leaderboard and open up a three-stroke lead over the chasing pack.The world No 1 told reporters earlier in the week that Riviera Country Club was a course he was excited to return to, but he was noticeably off the pace on his way to recording his worst round since the 2014 Tour Championship. Spieth now faces a battle to avoid a first missed cut of 2016 after carding eight bogeys and one double-bogey in an error-strewn display, with the 22-year-old unable to think of an explanation for why his first round went so wrong. The world No 1s last missed cut came at the Deutsche Bank Championship I feel really confident about where my game is, and I had a great range session, Spieth told reporters. There was nothing pinpointed that was wrong.I just played really poorly from good positions off the tee and didnt strike the iron shots bad either. I just overdrew it when you cant be left and I overcut it when you cant be right. It was just bad timing.Having two-putted the first and tapped in the second, Spieth carded a three-putt bogey at the next and missed another par-save from less than six feet at the par-three sixth. Spieth spoke to a PGA Tour official after his ball ended being positioned near a sprinkler head at the ninth A solid 20-foot gain was quickly cancelled out by back-to-back blemishes to see Spieth reach the turn in 38, before the 22-year-old briefly halted the bogey run with a close-range birdie at the 10th.After missing an opportunity from 10-feet at the par-five 11th, Spieths round quickly unravelled with four bogeys in a five-hole stretch, starting when a short putt lipped out at the 12th. Although Spieth recovered from another wayward tee shot at the 17th to leave a kick-in par, the world No 1 closed a day to forget with an uncharacteristic three-putt double-bogey at the last from less than 15 feet.The Masters and U.S. Open winner later said he had struggled adapting to a Riviera layout that had run firm and fast earlier in the week before it was softened by overnight rain.I found it very difficult to trust the way the golf course is playing, the 22-year-old added. Ive never played the golf course soft.Ive always played where you have to kind of float it on to the front of the greens and let it bounce, and I just never trusted the adjustment.Watch the Northern Trust Open throughout the week on Sky Sports 4 - your home of golf. Or watch from £6.99 without a contract, on NOW TV.Jordan Spieth features as part of the featured group coverage on Friday from 3pm. 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Wholesale Nike NFL Jerseys .com) - Following a late-game loss to the reigning NBA champs, the Toronto Raptors will look to sustain their recent high-level play as they travel to Indiana to take on the Pacers.With the proverbial second half of the season about to begin, there is no question the Blue Jays have to upgrade at second base, either now or in the off season. Brett Lawrie may well fill the void at second base, but of course that would leave a hole at third. Earlier this week, the Yankees inquired about Padres switch-hitting third baseman Chase Headley and were basically told he wasnt available. Headley, after a stellar season a year ago, is only batting .229 with seven homers and 31 runs batted in this time around. Still, he is highly regarded and will become a free agent after next season. At some point, San Diego may be forced to move him if they cant agree on a new contract. But failing Headley, maybe the Blue Jays should take a look at Padres second baseman, Jedd Gyorko. Gyorko won the Brooks Wallace Award in 2010 as the best Division 1 shortstop while playing at West Virginia. Hes playing second base now with the Padres, mostly due to the presence of Headley. His defence is considered average at best, yet hes only made one error at second this season with a .996 fielding percentage. Scouts figure his best position, though, is third base where in a brief stint this season hes made two errors. Gyorkos only 24-years-old and in just his first year in the majors. Hes known most for his bat, hitting .272 so far this season with eight homers (six in May) and 25 runs batted in. Its interesting, as well, that his manager at Double A San Antonio last season was Blue Jays skipper John Gibbons. So there is a connection. Gyorko may not be available, since hes only making $490,000s this season and wont be eligible for arbitration until 2016 and free agency until 2019. Hes the type of player a smaller market team such as San Diego would be likely to hold onto. Still, it might be worth a call because you know the Jays wont be in the bidding for Robinson Cano in the off season to fill that 2B void. A year ago, much was made - and rightly so - of Baltimores incredible record in one-run games (29-9), the best win percentage in that category in the modern baseball era, as well as their 16-2 record in extra-inning games. Both combined to be a big factor in putting the Os in the post-season for only the third time in 20 seasons. For whatever its worth, there are two teams in the American League and one in the National on somewhat similar runs this season. Oakland is 19-11 in one-run contests and 7-3 in extra inning deciisions.dddddddddddd Cleveland, maybe a bit of a surprise, is 18-9 in one-run games and 5-1 in extra innings. Both teams have deep bullpens, though Clevelands underachieved a bit in the first half. In the National League, Arizona is 21-12 in one-run games and 10-4 in extra innings. On the flip side of that, though in the Senior Circuit, St. Louis is only 12-10 in one-run games and just 1-4 in extra-inning games, yet the Cardinals lead the National League Central, by a game on Pittsburgh and have the best record in the majors at 57-36. You could excuse the Boston Red Sox for looking over their shoulders and hearing footsteps. After a tremendous first half under John Farrell, they cooled off a bit, going 5-5 heading into the break and their Division lead is down to two-and-a-half games on hard-charging Tampa Bay, which has won 14 of its last 16. The prime concern with the Bosox is their starting pitching, and in particular Clay Buchholz. The veteran right hander, who was putting up Cy Young-like numbers in the first half, is still being bothered by pain in the back of his right shoulder. Hes had two MRIs this season that found bursitis but no structural damage in his shoulder. Buchholz was due to be examined again at some point on Friday to try and discover if there is something more wrong that might have been missed earlier. If Buchholz ends up gone for the long haul and Jon Lester continues his up and down ways, Boston may have trouble even holding on to a wild card spot unless they can deal for a top notch starter. The Rays look like the team to watch the rest of the way. Theyve won nine out of 10 and 14 of their last 16. Their starting rotation, including David Price, is almost completely healthy again and Alex Cobb, who got nailed in the head with that line drive, could be back in a couple of weeks. The Rays staff has put together 15 consecutive quality starts, shattering the club record of nine set three years ago. This is not the team, the Blue Jays needed to be facing coming right out of the chute at Rogers Centre to begin the second half. If the Jays finish the season in the second division and miss the post-season, they need look no farther than their record against their own division to see why. They are only 18-27 against the East with 31 to go. Theyd have to win 20 of the remaining 31 just to hit the break-even point of 38-38, and that doesnt figure to be nearly good enough. ' ' '