"How I Met Your Mother" Season 9 spoilers indicate Cristin Milioti's mother role will be appearing more frequently in the last 11 episodes of the hit CBS sitcom. There are less than 20 hours before the wedding. Reports are scarce about Milioti's presence in "Slapsgiving 3: Slappointment in Slapmarra," but fans are guessing she'll be there. Watch the sneak preview in the CBS promo video.

Spoiler alert: This feature contains minor spoilers on How I Met Your Mother Season 9, Episode 14. This airs Monday, Jan. 13 on CBS.

The slap bet between Marshall (Jason Segel) and Barney (Neil Patrick Harris) started in HIMYM Season 2. The gang realises Robin (Cobie Smulders) does not like going to the mall. She's dating Ted Mosby (Josh Radnor) at the time. This slap bet premiere episode introduces Robin Sparkles to the viewers.

In How I Met Your Mother 9x14, Marshall serves another "high five" to Barney's face. Watch the sneak preview below to see a bit of the slap bet in the show's final year.

It is very likely that Cristin Milioti, who is now at the wedding venue with the gang, will be seen in this week's (and the new year's) new episode.

Marshall has arrived at the Farhampton Inn. He has to face his wife's "wrath" about his decision to take a judgeship post. Linus the barista is probably not serving steady booze to Lily (Alyson Hannigan) anymore. It's the future Mrs Mosby's turn. Does she get drunk, or does she give the scotch a rest reclaiming her band?

Lily's and Marshall's fight about Rome and the judgeship must be reserved for How I Met Your Mother Season 9, Episode 15, titled, "Unpause." Considering there are only two episodes - 9x15 and 9x16 - before "the mother" meets Ted, the Robin-future Mrs Mosby meeting is imminent. Yet HIMYM fans still do not know her name.

Ted Mosby meets the mother in "How Your Mother Met Me." This is the 16th episode of the final season of the sitcom, and the show's landmark 200th episode. Fans are excited, hoping the hype and the nine years of waiting are all worth it.

Here is the sneak preview of the long-running slap bet, which may or may not intertwine with any of the gang's meeting with the mother.

WATCH: HIMYM 9x14, Another High Five to Barney's Face

'How I Met Your Mother' Season 9, Episode 14, "Slapsgiving 3: Slappointment in Slapmarra" is part of the second half of the show's final season. The series finale is Episode 24, airing in March.

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