The Seattle Mariners welcome the Chicago Cubs to T-Mobile Park on Friday, August 21, for the opener of an interleague series, with first pitch scheduled for 10:10 PM ET. Emerson Hancock gets the ball for Seattle against Cubs left-hander Matthew Boyd. With the regular season in full swing, every series carries weight, and the Mariners will look to take care of business in front of their home crowd on a summer Friday night in the Pacific Northwest.

Pitching Matchup: Emerson Hancock vs. Matthew Boyd

Emerson Hancock draws the starting assignment for Seattle. The former first-round pick has worked his way into the Mariners' rotation, and T-Mobile Park is where he will look to build on his development this season. Hancock's ability to generate weak contact and work deep into games will be the central question mark heading into this one.

Opposing him is Matthew Boyd, a veteran left-hander with plenty of big-league experience. Boyd has made a career of mixing speeds and locating his fastball to both sides of the plate. Seattle's lineup will need to stay disciplined against a pitcher who does not overpower hitters but keeps them off-balance.

Seattle Mariners Lineup

• Brendan Donovan, 3B
• Randy Arozarena, LF
• Dominic Canzone, RF
• Julio Rodríguez, CF
• Josh Naylor, 1B
• Taylor Ward, DH
• Cal Raleigh, C
• Cole Young, 2B
• Brock Rodden, SS

Keys to Watch

Julio Rodríguez in the Cleanup Spot

Batting fourth, Julio Rodríguez is the engine of this offense. When J-Rod is locked in, he creates problems for any pitching staff. His combination of speed and raw power gives Seattle a genuine middle-of-the-order threat, and Boyd will have to be careful working around him in high-leverage situations.

Cal Raleigh's Impact Behind the Plate

Raleigh does his damage in two phases — calling a game for Hancock and supplying pop from the seventh spot. His work managing the pitching staff is just as valuable as anything he does with the bat. A clean game behind the plate will go a long way toward keeping Hancock comfortable and efficient.

Discipline Against a Crafty Lefty

Boyd is the type of pitcher who makes you beat yourself. The Mariners will need patient at-bats, particularly from the left-handed hitters in the order. Letting Boyd get ahead in counts early is a recipe for a quiet night offensively. Working counts and forcing him into the strike zone should be the approach.

Prediction

This is a winnable game for Seattle at home. Hancock has the opportunity to put together a quality start on a Friday night with the crowd behind him, and the Mariners lineup carries enough depth to do damage against Boyd. Look for Seattle to take the opener, with Rodríguez and Raleigh providing the key hits. Mariners 4, Cubs 2.

Coverage is available on KING 5, Mariners.TV, and 710 AM Seattle Sports, with Spanish-language radio on Mariners ES Radio.