Ravens: When did Baltimore last lose an NFL preseason game?
Ravens beat Commanders 17-15 for 23rd straight preseason win - CBS Baltimore
Ravens beat Commanders 17-15 for 23rd straight preseason win
Baltimore Ravens Have Huge Streak On The Line In 1st Preseason Game
Ravens beat Commanders to extend preseason streak to 23 but lose DB to injury – The Virginian-Pilot
Ravens beat Commanders 17-15 for 23rd straight preseason win, Taiwan News
NFL Preseason Roundup: Ravens extend preseason winning streak to 23 games 
Daily Slop - 22 Aug 23: Ravens are now the most recent NFL team to lose a preseason game; Washington at 2-0
Ravens vs. Commanders: Overreactions to preseason loss, Zay Flowers for RB1? - Baltimore Beatdown