Thanks to everyone who read and commented on the first installment of our 20 Greatest Players in Nationals History series. If you missed it, click this link to find out who checked in at Nos. 16-20 before proceeding with this week’s piece featuring Nos. 11-15.

Reminder: This is a purely subjective exercise. Stats were considered, of course, but greatness is about more than stats. It’s about impact, both on and off the field. It’s about significance to the franchise during its two decades in D.C. And on some instinctual level, it’s just about the players that you think most fondly of when you consider the last 20 years of Nats baseball.

We’ll continue the series each Sunday through the rest of the month, culminating with the Top 5 on Dec. 29 …

NO. 15 – LIVÁN HERNÁNDEZ
Starting pitcher, 2005-2006, 2009-11
Stats: 44-47, 4.32 ERA, 129 GS, 828.2 IP, 915 H, 430 R, 398 ER, 82 HR, 262 BB, 476 SO, 94 ERA+, 1.420 WHIP, 7.7 bWAR, 10.2 fWAR

Perhaps no player better epitomizes the early years of the Nationals than the man who threw the first pitch in club history. Hernández already had enjoyed a notable career before coming here, winning National League Championship and World Series MVP honors as a rookie for the Marlins in 1997, then again pitching in the World Series for the Giants in 2002. He was traded to the Expos in 2003 and established himself as the workhorse ace of that staff by the time he joined them in relocating to Washington.

The Nationals recently announced plans for their 20th anniversary celebration in 2025, with a number of special events and giveaways promised, not to mention a ranking of the 20 greatest moments in club history.

We here were already planning our own 20th anniversary celebration, and why wait until 2025 to get started with that? The Nats already have completed 20 full seasons in D.C., so this is as good a time as any to get the ball rolling with a weekly series that will run every Sunday through the rest of December: The 20 Greatest Players in Nationals History.

What constitutes “greatness?” For these purposes, we’re considering a combination of quantity and quality, plus impact on and off the field. Some of these guys played many years here and had lots of time to make names for themselves. Some of them weren’t here very long but still made a difference with specific acts of greatness.

We only considered a player’s contributions for the Nationals at the major league level. It doesn’t matter what they did before or after they were in Washington. No one singular stat was deemed more important than any other. Postseason performance wasn’t required, but it certainly elevated some players’ cases for inclusion on this list. This is, to be clear, a subjective exercise. There’s no right answer. And that means there will surely be some healthy debate about the choices, which is how these things are supposed to be.

We’ll unveil five names each week, culminating with the top five on Dec. 29. And with that, we begin today with No. 16-20 …