That's no double, that's a Crews grand slam!

Before rounding out a trot for his second home run of the season, Dylan Crews thought he only had a double.

Roping a line drive off the top of the wall in left field on Sunday, MLB’s No. 7 prospect came to a stop at second base and watched a third Double-A Harrisburg teammate cross home plate as the umpires came together for a discussion.

The officials confirmed Crews’ knock left the yard, perhaps a less-than-emphatic way to mark the second grand slam of his professional career and first in the Eastern League. He matched his season high in RBIs with one swing in the Senators' 10-2 win over Altoona at Peoples Natural Gas Field.

Crews also stole his first base on his first attempt of the season. The 2023 No. 2 overall pick out of LSU swiped four bags across three levels last season, but was caught six times in 10 attempts.

Crews -- who started his week with his first homer of the year for Harrisburg on Tuesday -- went 3-for-5 with two runs scored. The 5-foot-11 right-handed hitter raised his average to .273 and OPS to .818 in his second multihit contest of the fledgling campaign.

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In the field, the Nationals’ top prospect also showed off his range in the outfield. Crews made a sliding grab in center look effortless as he scampered in and took away a hit from Pirates No. 9 prospect Tsung-Che Cheng to end the seventh inning.

Crews headlines a Senators’ lineup filled by three Top 100 prospects. Shifting between the top three spots in the order to start the year, he was in the two-hole Sunday with Brady House (MLB's No. 45) and Yohandy Morales (No. 99) batting fourth and fifth respectively.