Mariano's first Sports Illustrated cover. Perfect!
Signature d'autographes de Mariano Rivera
Starting at: €9,95 - €542,95
SHIPPING
USA: Many items include free domestic shipping. Delivery times vary by product.
International: Available on select items at checkout.
DETAILS
Authentic memorabilia, carefully packaged. Questions? 816-868-2310.
WHERE/HOW TO SEND IN YOUR OWN ITEM
4 STEPS TO FOLLOW WHEN SENDING IN YOUR OWN ITEM TO A SIGNING
To streamline the process and ensure a smooth experience for you, we've outlined 4 important steps to follow when sending in your own item for the autograph signing:
Include Submission Form: Please ensure to include the completed SUBMISSION FORM with your item. This form helps us identify your order and ensures accurate processing.
Label Your Item: It's crucial to label your item clearly with your name, order number, signature location, pen color/type, and COA location. If no COA is needed please mark NO COA on your labeling. This ensures that your item is signed correctly the exact way you want. Here is a VIDEO to help you label and ship your item. Simply scroll to the timestamp of the item you are sending in.
Print Off Your Receipt: We kindly ask you to print off your order receipt and include it with your item. This serves as proof of purchase and helps us confirm the details of your order.
Add Your Order Number to the Shipping Label: To avoid any confusion when your item is received by us, please add your order number prominently to the shipping label. This allows our team to quickly identify your package upon receipt. Ship your item here…
Powers Sports Memorabilia/Order # (fill in yours here)
923 NE Woods Chapel Rd, Suite 203
Lee’s Summit, MO 64064
By following these 4 steps, you'll help us expedite the processing of your order and ensure a seamless autograph signing experience.
If you have any questions or require further assistance, please don't hesitate to reach out to our customer support team at 816-868-2310. We're here to help and ensure you're completely satisfied with your purchase.
All mail in items are sent in at customer's risk. Although 99% of requests are fulfilled, not all requests can be guaranteed. We will make every effort to comply with your specific requests such as pen color, pen type,
signature location, etc. however, we can’t guarantee them. Athlete has the right to decline any item or inscription.
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Build Your Signing
Make It Exactly What You Want
One choice at a time — it takes about 30 seconds. Your price updates as you go, and final pricing is confirmed at checkout.
YOUR PIECE
Ships 2-3 weeks after signing
YOUR Card - $299 €270,95
Total €270,95
- 100% authenticity guaranteed
- Free, fully tracked return shipping
- Earn 597 Powers Points when you buy this item.
PRODUCT INFORMATION
Séance de dédicaces de Mariano Rivera
· Date limite d'envoi des articles : 18 mai 2026 (Si vous envoyez VOTRE ARTICLE, il doit être physiquement en notre possession avant cette date)
· Date de la signature : 28 mai 2026
· ✅ Tous les articles signés sont renvoyés dans les 2 à 3 semaines suivant la signature
· ✅ Livraison GRATUITE incluse pour toutes les commandes
· ✅ Authenticité 100 % garantie – Beckett Basic COA disponible
Service de dédicaces et d'évaluation PSA pour cartes à collectionner
Comment ça marche
1. Choisissez votre article — envoyez VOTRE article ou choisissez un de NOS articles.
2. Sélectionnez les options supplémentaires — authentification, inscription, encadrement, preuve photo, etc.
3. Expédiez et étiquetez correctement — remplissez le formulaire de soumission, étiquetez avec le numéro de commande, la couleur du stylo, la taille/l'emplacement de la signature (si vous envoyez votre propre article)
4. Recevez votre article signé — expédié en toute sécurité chez vous.
Pourquoi collectionner ici ?
· ⭐⭐⭐⭐⭐ Noté 4.9/5 par des collectionneurs satisfaits
· Des années d'expérience et des centaines de signatures réussies
· Authentification par un tiers toujours disponible
· Emballage sécurisé et retour suivi
Avis
« Toujours légitime, toujours rapide. Mon fournisseur de signatures haut de gamme. » – Alex M.
« J'ai adoré l'option d'encadrement. On dirait un tableau de musée. » – Kelly J.
Foire aux questions
Quand récupérerai-je mon article ?
Attendez-vous à des retours 2 à 3 semaines après la date de signature, une fois que notre équipe aura terminé le processus.
Puis-je utiliser mon propre article ?
Oui — envoyez simplement votre article, remplissez le formulaire de soumission ci-dessous, étiquetez correctement, et nous nous occupons du reste.
L'authenticité est-elle garantie ?
Oui — tous « NOS articles » sont accompagnés d'une authentification. Pour « VOS articles », vous pouvez ajouter une authentification ou demander aucun COA, selon votre préférence.
Offrez-vous la livraison gratuite ?
Absolument — la livraison de retour est incluse dans toutes les commandes de signatures aux États-Unis.
Où dois-je expédier mes articles ?
Powers Sports Memorabilia (numéro de commande (à compléter ici))
923 NE Woods Chapel Rd, Suite 203
Lee's Summit, MO 64064
Customer Reviews
Overall rating: 5.0 / 5 from 26 reviews.
The GOAT and a great guy!
Great job by Matt and his team as usual
Matt and his team are the best around!
Great experiences, highly recommended
Matt and his team are the best!
Matt and his team always do the best job for their clients. I highly recommend them to anyone looking for top of the line autographs
Matt and his team always come through, they do such a great job!
As usual Matt and his team did an awesome job!
Super excited to add this piece to my collection
Best place to get personalized autographs of your sports heroes!!
Awesome piece! The G.O.A.T.👍🏼👍🏼
Awesome piece of gear from his last ASG. The silver on the blue star background looks great.
Good stuff
This signing turned out amazing! I’ve learned that if it comes down to working with Powers or another option, go with Powers! Natalie has always been super patient and easy to work with!
A+ experience start to finish.
I've bought several pieces from these guys, and I gotta say they don't disappoint! I will continue buying from them!! Awesome company
Matt and his team did a great job as usual, I would HIGHLY recommend them!
Matt and his team did a great job as usual, I would HIGHLY recommend them!
Card came back to me exactly in the condition I sent it! Beautiful autograph!
Beautiful jersey, beautiful signature. Excellent piece for the rec room.
Excellent
Awesome Mariano Rivera ticket!!
Great Mariano Rivera signed ticket!!
Exceptional customer service! Everything I’ve ordered has come back perfect!
Another good Powers experience. A bit of a hiccup with USPS getting my item to them on time, but Powers managed to make it work. Much appreciated. A little smudge on the sig. Overall happy. Will not hesitate to send in my items again and again.
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