Jordan Spieth and Patrick Reed are tied for the lead at the 2015 U.S. Open after two rounds at Chambers Bay. The two young Texans have set the pace at five under par heading into the weekend and their pairing is certainly the one to watch. They tee off at 5:50 p.m. ET. Here's a look at the full list of tee times for third-round action.InconsistencyDespite an up and down day on Friday, Reed still has a share of the lead. He had six bogeys on Friday, but luckily for him, he also had five birdies and an eagle. To create some distance between he and Spiethas well as the other remaining contendersReed has to show more consistency.Spieth's three-under 67 was a really solid round, but it could have been a lot better. After a masterful day that included six birdies, Spieth bogeyed the 16th hole. If not for that misstep, we'd be talking about Spieth in sole possession of the top spot on the leaderboard.At just 21 years old, the 2015 Masters champion could be setting himself up to win the second major championship of the year.Spieth's rise to the top of the sport is impressive. Reed seemingly respects what Spieth has accomplished, but he's looking forward to the challenge, per Kyle Porter of CBS Sports:"It's going to be fun. Anytime I play with Jordan, I enjoy it. The main thing for me is to stay focused and focus on what I need to do to play some good golf. And plot my way around this golf course, especially if it gets firmer and faster and knowing where to leave the golf ball."These two men might find themselves in a playoff at the end of the tournament if Reed can right the ship in time for a strong final round of golf.Another Duo to WatchDustin Johnson and Branden Grace are just one stroke behind Spieth and Reed. However, they are tied for third on four under par. Johnson is still in the thick of things, but he backed into this position with a one-over 71 on Friday. After sharing the Round 1 lead with Henrik Stenson, Johnson ran into some issues on the back nine in the second round.He bogeyed the 14th, 17th and 18th holes. Johnson is fortunate he played so well on Thursday, or else he could be on the wrong side of the cut line.Grace hasn't been spectacular, but his steadiness has kept him right on the cusp. He put together another strong day on Friday. His three-under 67 featured an eagle on the eighth hole and four birdies. There isn't as much star power in the Johnson-Grace pairing as there is the Spieth-Reed duo, but the winner could still emerge from the two by Sunday. Click here to read full news..