Our fantasy baseball waiver wire column takes a look at players available in many leagues that could have an immediate impact on your fantasy roster, or simply just players to keep on your radar. Let’s take a look some of the top waiver wire pickups heading into Week 13 of the MLB season. If you have any questions on who to pick up or who to drop, feel free to post them in our Fantasy Baseball Forum.

Must add in all leagues

Brett Lawrie OAK | 2B/3B

Lawrie is entering the classic post hype sleeper territory and it’s time to pick this guy up. We have all heard his name and we know he has potential and it’s looking like this might be his breakout year. He is batting over .360 so far this June and during that stretch he has ten extra base hits in 72 at bats. (about 55% owned)

Taijuan Walker SEA | SP

It only took a few months, but Walker seems to be back to his preseason form. That’s certainly weird to say since it’s typically supposed to happen the other way around, but whatever caused his rocky start seems to be a thing of the past. Walker has had a quality start in each of his last five outings and during that stretch he has had well over a K per inning. (about 65% owned)

Maikel Franco PHI | 3B

Ok it’s time to call this youngster a must add. He isn’t getting the same amount of hype as some other young prospects and I am not sure why. The kid was amazing in the minors and I don’t think his numbers in the bigs are that fluky. He already has 20 extra base hits in only 148 at bats and he is batting over .300, what’s not to like. (about 60% owned)

Justin Turner LAD | 1B/2B/3B/SS

It’s amazing to me the year that Turner is putting together and he is still only owned in a little over half of all leagues. He can play any infield position except for catcher and he is doing everything except stealing bags. Since joining the Dodgers last year this guy has been on fire, apparently he just needed a warmer climate to get his bat going. (about 65% owned)

Héctor Santiago LAA | SP/RP

Hector is quickly putting together a great season and it’s surprising that the fantasy world isn’t taking notice. The most surprising thing to me is that he had a great year last year, so these numbers shouldn’t really come as a surprise. The only knock I have on him is that he is having trouble going deep into games, but I think he can keep up this impressive pace. (about 60% owned)

Add in deeper leagues

Marco Estrada TOR | SP/RP

Estrada has had a solid season and his near no-hitter has thrust him onto the fantasy radar. He has been in the bigs since 2008 and he has had some success. I don’t think he will ever be more than slightly above average, but that’s still good enough to make some fantasy rosters. (about 20% owned)

Luis Valbuena HOU | 2B/3B

With a batting average just over .200 you might wonder why Valbuena is on this list, well it’s because 19 of his 49 hits so far this year have been home runs. You combine that with dual position eligibility and that makes him an interesting add. His power is certainly intriguing, just don’t expect much else out of the .226 lifetime batter. (about 35% owned)

Iván Nova NYY | SP

In his first game back after Tommy John surgery Nova looked solid. He was only able to manage one strikeout in 6.2 innings, but he only allowed three hits. Nova has shown flashes in the past and now that he is healthy he should be fantasy relevant again. (about 15% owned)

Kevin Pillar TOR | OF

Pillar has had an amazing June and this could be the start of a big thing. He has had success in the minors and I am a big fan of his overall potential. He has speed, power, and his average should be solid. (about 55% owned)

Kevin Kiermaier TB | OF

I would like to see Kiermaier’s average up closer to .300, but other than that there is no reason not to love this guy. He already has 25 extra base hits on the season and eight stolen bases. At only only 25 years old Kiermaier certainly has a bright future and I think he will be a 20/20 guy in no time. (about 10% owned)