MLB's digital-only national broadcasts continue this week with today's Giants-Mariners contest at Safeco Field, which will stream live in the United States exclusively on Facebook. The Interleague clash is one of 25 streaming broadcasts scheduled for 2018 as part of MLB's partnership with the social media network.
Fans can catch the 4:10 p.m. ET contest at www.facebook.com/MLBLiveGames or by logging onto Facebook's MLB live page from their phones, tablets, smart TVs or other streaming devices.
How to watch on mobile and desktop
Desktop

1. Search for "MLB Live" on Facebook
   
2. Follow the "MLB Live" show page
   Mobile
   
3. Download the Facebook video app on your TV or streaming device and search for "MLB Live"
   
4. Or stream the game from your phone to a TV on the same WiFi network by tapping the TV icon.
   What to know about the Giants-Mariners game
   Both the Giants and Mariners remain in the playoff hunt as the unofficial second half of the season has gotten underway, with Seattle currently occupying the second American League Wild Card position, and San Francisco within striking distance in both the National League West and NL Wild Card races.
   The Giants are scheduled to send left-hander Derek Holland (5-8, 4.06 ERA) to the mound in the series finale Wednesday. Though he's been used both as a starter and reliever since July 5, Holland has a 2.89 ERA in 11 appearances (seven starts) since the beginning of June. He also has a good deal of experience facing the Mariners, having pitched for the Rangers in the AL West from 2009-16. In six starts vs. Seattle since 2016, he has a 4.17 ERA.

The Mariners are slated to counter with right-hander Mike Leake (8-6, 4.22 ERA). Much like Holland, Leake has more history against San Francisco than one might expect from a starting pitcher in an Interleague matchup, as he pitched in the NL for eight-plus seasons prior to coming to Seattle. He hasn't faced the Giants since 2016, however, when in one start he gave up two runs over six innings while pitching for the Cardinals.

Leake bounced back from a rough start on July 10 vs. the Angels, in which he surrendered seven runs (five earned) over four innings, by tossing six strong innings and giving up two runs (one earned) vs. the Rockies at Coors Field on July 15 (though Seattle lost that game, 4-3).