SEATTLE, Wash. —What a game at CenturyLink Field.

The Houston Texans and Seattle Seahawks are tied at 21 after two quarters in what has been an electric and entertaining game. Here are a few highlights:

• The Seahawks added veteran defensive end Dwight Freeney last week and have incorporated him in on a solid number of snaps thus far. Freeney saw action of the first defensive drive, including the second snap of the game, and bent the edge pretty well against Houston left tackle Duane Brown, who is active for the first time this season. Freeney has one tackle and half a sack at halftime.
• The Seahawks defense gave up a long 59-yard touchdown to Texans wide receiver Will Fuller on their opening drive but got some redemption on the following one. Safety Earl Thomas picked off quarterback Deshaun Watson and returned the pass 78 yards to the house for a touchdown. The interception was Thomas' first of the season and the second pick-6 of his career. 

• Dealing with an ankle injury throughout the week, Seahawks center Justin Britt was not among the list of inactives for Sunday's game and made the start. Also along the offensive line, rookie Ethan Pocic made his second consecutive start at left guard for Luke Joeckel (knee surgery).
• Have a game, Paul Richardson. Richardson scored two receiving touchdowns in the first half and this is the first multi-touchdown game of his NFL career. 
• This game has been a fun, high-scoring affair. The 42 combined points between the teams makes this easily the highest-scoring first half the Seahawks have participated in this season. The Texans have 281 yards of total offense and 15 first downs. Although the Seahawks don't have as many yards (they've had the ball less than the Texans), they have had a ton of success through the air. Quarterback Russell Wilson is 10-of-15 and has thrown for 160 yards with the two touchdowns to Richardson.