The baseball season has finally begun, which means that it is time to see how our fantasy baseball teams hold up this season. Some of us may be lucky enough to have our players stay healthy and perform at the level we had expected them to, but for those that won't be so lucky will have to be looking at the free agent market for a replacement. This list consists of the top 5 position players who are less than 50% owned on ESPN fantasy baseball teams. If you like this you can also check out the The Top 5 Pitchers on the Free Agent Market, 5 Deep Sleepers in 2017.

1. Mitch Haniger, OF, Seattle Mariners , 2016 .229/.309/.713, %OWN-18.2%

Haniger was brought over this past off season in the trade that sent Taijuan Walker and Ketel Marte to the Arizona Diamondbacks. The biggest return for Seattle Mariners is suppose to be there starting shortstop Jean Segura, but it may be Haniger that proves to be most valuable. in 2016 between AA and AAA Haniger hit .321/.419/.581 which ended up getting him promoted in late August. Haniger's slash line of .229/.309/.713 in the big leagues obviously did not impress the Diamondbacks enough to take the chance on him in 2017. If you take a closer look at the data, he only hit .172 against lefties, which is really bad especially for a right-handed hitter. I predict that this number will skyrocket in 2017, and actually make him valuable when a lefty is on the mound. His contact when swinging of 78.0% was not that bad, but i expect this to get above 80% as he sees more major league pitching in 2017. He did also only swing at 22.0% of pitches outside the zone which is better than Blue Jay's superstar third baseman Josh Donaldson's 24.6%. Talking about Donaldson, did you know Haniger and Donaldson had the same exit velocity of 93.1 mph in 2016. Their 93.1 mph exit velocity was actually 21st overall for anyone that had a minimum of 30 batted balls in 2016. Haniger's low cost and high upside in 2017 is too great to ignore for anyone looking for a steal.

2. Stephen Vogt, C, Oakland Athletics, 2016 .251/.315./.711, %OWN-44.0%

The fact that a two time all-star in 2015 and 2016 is available in 66% of leagues out there just baffles me. Vogt is at a position in which production offensively is at a premium. No his numbers were not eye popping, but neither are any of the other catcher's number (excluding Lucroy and Posey). His .251 AVG in 2016 is a fair expectation for 2017 as his lifetime AVG is .255. He also owned a AVG of .264 against right handers in 2016 but a poor AVG of .196 which should increase a little bit in 2017. He also had a decent walk rate of 6.6%in 2016 which compared to his 11.0% in 2015 is pitiful. In 2017 I would expect to see a walk rate somewhere in between his 2015 and 2016. He also had a respectable 84.0% contact when swinging. Add 10-15 home runs everything he has to offer, and Vogt offers fantasy owners a consistent catcher they can leave in their lineup without worries.

3. Devon Travis, 2B, Toronto Blue Jays, 2016 .300/.332/.785 , %OWN-43.3%

Even though Travis has a lot of upside, the fact that he is still around should not be that surprising for any fantasy players that have taken a look at the loaded pool of second basemen in 2017. The fact remains though if you hold Travis on your team's bench, if your star second baseman goes down with an injury you know you have a solid backup waiting right behind him. Travis does have injury concerns that follow him as he has been on the DL the past two seasons, but when he has been on the field he has produced more than solid numbers. He owns a slash line of .301/.342/.811 over 670 PA which could help add production to any fantasy team, especially those in deep 12-16 leagues.

4. Corey Dickerson, OF, Tampa Bay Rays, 2016 .243/.293/.761, %OWN-23.5%

DIckerson was brought over in the trade that sent Jake McGee to Colorado Rockies back in January of 2016. Ever since reaching Tampa Bay, Dickerson has been somewhat of a bust. His AVG nearly dropped .060 points from 2015 to 2016. Leaving the atmosphere of Coors Field will inevitably hurt the statistics of any batter , but I don't think anyone would expect a .300 to drop down to the .240's. There is an easy explanation to his .060 point drop and that is that he simply wasn't making as consistent contact as he was in Colorado. Dickerson's 2015 contact while swinging was 73.3%, but in 2016 it dropped down to 60.0%. The reason for this, I don't know, but I don't expect this number to be in the 60's again in 2017. Although 2016 was DIckerson worst season to date, there were some positives to his 2016 campaign. One of those positives being that he showed us he was still able to hit for power outside of Coors Field, matching his career high 24 home runs last year. Now I don't expect Dickerson to post a batting average above .300 anymore but I do expect a .260 with the upside of hitting 25 homers.

5. Justin Bour, 1B, Miami Marlins, 2016 .264/.349/.824, %OWN-19.9%

Bour is a solid hitter all around, He hits for decent average, has good plate discipline and has a good amount of power on top all of that. The issue that comes with Bour is his health. Last year he missed a good chunk of the season due to injuries, but it seems that he is starting out his year healthy. Bour also holds the 31st average exit velocity for anyone with a minimum of 30 batted balls. One of the more surprising stats Bour possesses is the fact that with his raw power he only struck 56 over 321 plate appearances. This means that Bour should hit for a decent batting average while maintaining good homer run numbers.

Other Notables

Yulieski Gurriel- 49.2%

Max Kepler- 39.8%

Eugenio Suarez- 39.4%

Nick Markakis- 35.7%

Wellington Castillo- 34.7%

Aaron Judge- 34.1%

Pablo Sandoval- 33.8%

Joe Panik- 33.0%

Jarrod Dyson- 29.8%

Josh Reddick- 15.2%